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class="vector-menu mw-portlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_no.wikipedia.org&uselang=nb" class=""><span>Doner</span></a> </li> <li id="pt-createaccount-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Spesial:Opprett_konto&returnto=Kjemisk+reaksjon" title="Du oppfordres til å opprette en konto og logge inn, men det er ikke obligatorisk" class=""><span>Opprett konto</span></a> </li> <li id="pt-login-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Spesial:Logg_inn&returnto=Kjemisk+reaksjon" title="Du oppfordres til å logge inn, men det er ikke 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data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Innhold</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">flytt til sidefeltet</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">skjul</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">(Til toppen)</div> </a> </li> <li id="toc-Historie" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Historie"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Historie</span> </div> </a> <ul id="toc-Historie-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Ulike_typer_kjemiske_reaksjoner" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Ulike_typer_kjemiske_reaksjoner"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Ulike typer kjemiske reaksjoner</span> </div> </a> <ul id="toc-Ulike_typer_kjemiske_reaksjoner-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Reaksjonsligninger" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Reaksjonsligninger"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Reaksjonsligninger</span> </div> </a> <ul id="toc-Reaksjonsligninger-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Kjemisk_likevekt_og_reaksjonshastighet" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Kjemisk_likevekt_og_reaksjonshastighet"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Kjemisk likevekt og reaksjonshastighet</span> </div> </a> <ul id="toc-Kjemisk_likevekt_og_reaksjonshastighet-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Eksoterme_og_endoterme_reaksjoner" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Eksoterme_og_endoterme_reaksjoner"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Eksoterme og endoterme reaksjoner</span> </div> </a> <ul id="toc-Eksoterme_og_endoterme_reaksjoner-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Hverdagseksempler" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Hverdagseksempler"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Hverdagseksempler</span> </div> </a> <ul id="toc-Hverdagseksempler-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Referanser" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Referanser"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>Referanser</span> </div> </a> <ul id="toc-Referanser-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Innhold" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Vis/skjul innholdsfortegnelsen" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Vis/skjul innholdsfortegnelsen</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Kjemisk reaksjon</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Gå til en artikkel på et annet språk. Tilgjengelig på 119 språk" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-119" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">119 språk</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Kjemisk_reaksjon" title="Kjemisk reaksjon – norsk nynorsk" lang="nn" hreflang="nn" data-title="Kjemisk reaksjon" data-language-autonym="Norsk nynorsk" data-language-local-name="norsk nynorsk" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Kemisk_reaktion" title="Kemisk reaktion – dansk" lang="da" hreflang="da" data-title="Kemisk reaktion" data-language-autonym="Dansk" data-language-local-name="dansk" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Kemisk_reaktion" title="Kemisk reaktion – svensk" lang="sv" hreflang="sv" data-title="Kemisk reaktion" data-language-autonym="Svenska" data-language-local-name="svensk" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/Efnahvarf" title="Efnahvarf – islandsk" lang="is" hreflang="is" data-title="Efnahvarf" data-language-autonym="Íslenska" data-language-local-name="islandsk" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Chemiese_reaksie" title="Chemiese reaksie – afrikaans" lang="af" hreflang="af" data-title="Chemiese reaksie" data-language-autonym="Afrikaans" data-language-local-name="afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-anp mw-list-item"><a href="https://anp.wikipedia.org/wiki/%E0%A4%B0%E0%A4%BE%E0%A4%B8%E0%A4%BE%E0%A4%AF%E0%A4%A8%E0%A4%BF%E0%A4%95_%E0%A4%85%E0%A4%AD%E0%A4%BF%E0%A4%95%E0%A5%8D%E0%A4%B0%E0%A4%BF%E0%A4%AF%E0%A4%BE" title="रासायनिक अभिक्रिया – angika" lang="anp" hreflang="anp" data-title="रासायनिक अभिक्रिया" data-language-autonym="अंगिका" data-language-local-name="angika" class="interlanguage-link-target"><span>अंगिका</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%AA%D9%81%D8%A7%D8%B9%D9%84_%D9%83%D9%8A%D9%85%D9%8A%D8%A7%D8%A6%D9%8A" title="تفاعل كيميائي – arabisk" lang="ar" hreflang="ar" data-title="تفاعل كيميائي" data-language-autonym="العربية" data-language-local-name="arabisk" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/Reaici%C3%B3n_qu%C3%ADmica" title="Reaición química – asturisk" lang="ast" hreflang="ast" data-title="Reaición química" data-language-autonym="Asturianu" data-language-local-name="asturisk" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Kimy%C9%99vi_reaksiya" title="Kimyəvi reaksiya – aserbajdsjansk" lang="az" hreflang="az" data-title="Kimyəvi reaksiya" data-language-autonym="Azərbaycanca" data-language-local-name="aserbajdsjansk" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-azb mw-list-item"><a href="https://azb.wikipedia.org/wiki/%D8%B4%DB%8C%D9%85%DB%8C%D8%A7%DB%8C%DB%8C_%D8%B1%DB%8C%D8%A7%DA%A9%D8%B3%DB%8C%D9%88%D9%86" title="شیمیایی ریاکسیون – søraserbajdsjansk" lang="azb" hreflang="azb" data-title="شیمیایی ریاکسیون" data-language-autonym="تۆرکجه" data-language-local-name="søraserbajdsjansk" class="interlanguage-link-target"><span>تۆرکجه</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%B0%E0%A6%BE%E0%A6%B8%E0%A6%BE%E0%A6%AF%E0%A6%BC%E0%A6%A8%E0%A6%BF%E0%A6%95_%E0%A6%AC%E0%A6%BF%E0%A6%95%E0%A7%8D%E0%A6%B0%E0%A6%BF%E0%A6%AF%E0%A6%BC%E0%A6%BE" title="রাসায়নিক বিক্রিয়া – bengali" lang="bn" hreflang="bn" data-title="রাসায়নিক বিক্রিয়া" data-language-autonym="বাংলা" data-language-local-name="bengali" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-zh-min-nan mw-list-item"><a href="https://zh-min-nan.wikipedia.org/wiki/H%C3%B2a-ha%CC%8Dk_ho%C3%A1n-%C3%A8ng" title="Hòa-ha̍k hoán-èng – minnan" lang="nan" hreflang="nan" data-title="Hòa-ha̍k hoán-èng" data-language-autonym="閩南語 / Bân-lâm-gú" data-language-local-name="minnan" class="interlanguage-link-target"><span>閩南語 / Bân-lâm-gú</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%A5%D1%96%D0%BC%D1%96%D1%87%D0%BD%D0%B0%D1%8F_%D1%80%D1%8D%D0%B0%D0%BA%D1%86%D1%8B%D1%8F" title="Хімічная рэакцыя – belarusisk" lang="be" hreflang="be" data-title="Хімічная рэакцыя" data-language-autonym="Беларуская" data-language-local-name="belarusisk" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-be-x-old mw-list-item"><a href="https://be-tarask.wikipedia.org/wiki/%D0%A5%D1%96%D0%BC%D1%96%D1%87%D0%BD%D0%B0%D1%8F_%D1%80%D1%8D%D0%B0%D0%BA%D1%86%D1%8B%D1%8F" title="Хімічная рэакцыя – belarusisk (klassisk ortografi)" lang="be-tarask" hreflang="be-tarask" data-title="Хімічная рэакцыя" data-language-autonym="Беларуская (тарашкевіца)" data-language-local-name="belarusisk (klassisk ortografi)" class="interlanguage-link-target"><span>Беларуская (тарашкевіца)</span></a></li><li class="interlanguage-link interwiki-bcl mw-list-item"><a href="https://bcl.wikipedia.org/wiki/Reaksyon_na_kimikal" title="Reaksyon na kimikal – sentralbikol" lang="bcl" hreflang="bcl" data-title="Reaksyon na kimikal" data-language-autonym="Bikol Central" data-language-local-name="sentralbikol" class="interlanguage-link-target"><span>Bikol Central</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%A5%D0%B8%D0%BC%D0%B8%D1%87%D0%BD%D0%B0_%D1%80%D0%B5%D0%B0%D0%BA%D1%86%D0%B8%D1%8F" title="Химична реакция – bulgarsk" lang="bg" hreflang="bg" data-title="Химична реакция" data-language-autonym="Български" data-language-local-name="bulgarsk" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Hemijska_reakcija" title="Hemijska reakcija – bosnisk" lang="bs" hreflang="bs" data-title="Hemijska reakcija" data-language-autonym="Bosanski" data-language-local-name="bosnisk" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Reacci%C3%B3_qu%C3%ADmica" title="Reacció química – katalansk" lang="ca" hreflang="ca" data-title="Reacció química" data-language-autonym="Català" data-language-local-name="katalansk" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cv mw-list-item"><a href="https://cv.wikipedia.org/wiki/%D0%A5%D0%B8%D0%BC%D0%B8%D0%BB%D0%BB%D0%B5_%D1%80%D0%B5%D0%B0%D0%BA%D1%86%D0%B8" title="Химилле реакци – tsjuvasjisk" lang="cv" hreflang="cv" data-title="Химилле реакци" data-language-autonym="Чӑвашла" data-language-local-name="tsjuvasjisk" class="interlanguage-link-target"><span>Чӑвашла</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Chemick%C3%A1_reakce" title="Chemická reakce – tsjekkisk" lang="cs" hreflang="cs" data-title="Chemická reakce" data-language-autonym="Čeština" data-language-local-name="tsjekkisk" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-sn mw-list-item"><a href="https://sn.wikipedia.org/wiki/Rupinguro_rweMishonga" title="Rupinguro rweMishonga – shona" lang="sn" hreflang="sn" data-title="Rupinguro rweMishonga" data-language-autonym="ChiShona" data-language-local-name="shona" class="interlanguage-link-target"><span>ChiShona</span></a></li><li class="interlanguage-link interwiki-cy mw-list-item"><a href="https://cy.wikipedia.org/wiki/Adwaith_cemegol" title="Adwaith cemegol – walisisk" lang="cy" hreflang="cy" data-title="Adwaith cemegol" data-language-autonym="Cymraeg" data-language-local-name="walisisk" class="interlanguage-link-target"><span>Cymraeg</span></a></li><li class="interlanguage-link interwiki-ary mw-list-item"><a href="https://ary.wikipedia.org/wiki/%D8%AA%D9%81%D8%A7%D8%B9%D9%84_%D9%83%D9%8A%D9%85%D8%A7%D9%88%D9%8A" title="تفاعل كيماوي – marokkansk-arabisk" lang="ary" hreflang="ary" data-title="تفاعل كيماوي" data-language-autonym="الدارجة" data-language-local-name="marokkansk-arabisk" class="interlanguage-link-target"><span>الدارجة</span></a></li><li class="interlanguage-link interwiki-de badge-Q17437796 badge-featuredarticle mw-list-item" title="utmerket artikkel-merke"><a href="https://de.wikipedia.org/wiki/Chemische_Reaktion" title="Chemische Reaktion – tysk" lang="de" hreflang="de" data-title="Chemische Reaktion" data-language-autonym="Deutsch" data-language-local-name="tysk" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Keemiline_reaktsioon" title="Keemiline reaktsioon – estisk" lang="et" hreflang="et" data-title="Keemiline reaktsioon" data-language-autonym="Eesti" data-language-local-name="estisk" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%A7%CE%B7%CE%BC%CE%B9%CE%BA%CE%AE_%CE%B1%CE%BD%CF%84%CE%AF%CE%B4%CF%81%CE%B1%CF%83%CE%B7" title="Χημική αντίδραση – gresk" lang="el" hreflang="el" data-title="Χημική αντίδραση" data-language-autonym="Ελληνικά" data-language-local-name="gresk" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Chemical_reaction" title="Chemical reaction – engelsk" lang="en" hreflang="en" data-title="Chemical reaction" data-language-autonym="English" data-language-local-name="engelsk" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Reacci%C3%B3n_qu%C3%ADmica" title="Reacción química – spansk" lang="es" hreflang="es" data-title="Reacción química" data-language-autonym="Español" data-language-local-name="spansk" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Kemia_reakcio" title="Kemia reakcio – esperanto" lang="eo" hreflang="eo" data-title="Kemia reakcio" data-language-autonym="Esperanto" data-language-local-name="esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Erreakzio_kimiko" title="Erreakzio kimiko – baskisk" lang="eu" hreflang="eu" data-title="Erreakzio kimiko" data-language-autonym="Euskara" data-language-local-name="baskisk" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D9%88%D8%A7%DA%A9%D9%86%D8%B4_%D8%B4%DB%8C%D9%85%DB%8C%D8%A7%DB%8C%DB%8C" title="واکنش شیمیایی – persisk" lang="fa" hreflang="fa" data-title="واکنش شیمیایی" data-language-autonym="فارسی" data-language-local-name="persisk" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/R%C3%A9action_chimique" title="Réaction chimique – fransk" lang="fr" hreflang="fr" data-title="Réaction chimique" data-language-autonym="Français" data-language-local-name="fransk" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-fy mw-list-item"><a href="https://fy.wikipedia.org/wiki/Gemyske_reaksje" title="Gemyske reaksje – vestfrisisk" lang="fy" hreflang="fy" data-title="Gemyske reaksje" data-language-autonym="Frysk" data-language-local-name="vestfrisisk" class="interlanguage-link-target"><span>Frysk</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Imoibri%C3%BA_ceimiceach" title="Imoibriú ceimiceach – irsk" lang="ga" hreflang="ga" data-title="Imoibriú ceimiceach" data-language-autonym="Gaeilge" data-language-local-name="irsk" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gd mw-list-item"><a href="https://gd.wikipedia.org/wiki/Iom-obrachadh_ceimigeach" title="Iom-obrachadh ceimigeach – skotsk-gælisk" lang="gd" hreflang="gd" data-title="Iom-obrachadh ceimigeach" data-language-autonym="Gàidhlig" data-language-local-name="skotsk-gælisk" class="interlanguage-link-target"><span>Gàidhlig</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Reacci%C3%B3n_qu%C3%ADmica" title="Reacción química – galisisk" lang="gl" hreflang="gl" data-title="Reacción química" data-language-autonym="Galego" data-language-local-name="galisisk" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%ED%99%94%ED%95%99_%EB%B0%98%EC%9D%91" title="화학 반응 – koreansk" lang="ko" hreflang="ko" data-title="화학 반응" data-language-autonym="한국어" data-language-local-name="koreansk" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D5%94%D5%AB%D5%B4%D5%AB%D5%A1%D5%AF%D5%A1%D5%B6_%D5%BC%D5%A5%D5%A1%D5%AF%D6%81%D5%AB%D5%A1%D5%B6%D5%A5%D6%80" title="Քիմիական ռեակցիաներ – armensk" lang="hy" hreflang="hy" data-title="Քիմիական ռեակցիաներ" data-language-autonym="Հայերեն" data-language-local-name="armensk" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%B0%E0%A4%BE%E0%A4%B8%E0%A4%BE%E0%A4%AF%E0%A4%A8%E0%A4%BF%E0%A4%95_%E0%A4%85%E0%A4%AD%E0%A4%BF%E0%A4%95%E0%A5%8D%E0%A4%B0%E0%A4%BF%E0%A4%AF%E0%A4%BE" title="रासायनिक अभिक्रिया – hindi" lang="hi" hreflang="hi" data-title="रासायनिक अभिक्रिया" data-language-autonym="हिन्दी" data-language-local-name="hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Kemijska_reakcija" title="Kemijska reakcija – kroatisk" lang="hr" hreflang="hr" data-title="Kemijska reakcija" data-language-autonym="Hrvatski" data-language-local-name="kroatisk" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-io mw-list-item"><a href="https://io.wikipedia.org/wiki/Kemiala_reakto" title="Kemiala reakto – ido" lang="io" hreflang="io" data-title="Kemiala reakto" data-language-autonym="Ido" data-language-local-name="ido" class="interlanguage-link-target"><span>Ido</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Reaksi_kimia" title="Reaksi kimia – indonesisk" lang="id" hreflang="id" data-title="Reaksi kimia" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesisk" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-ia mw-list-item"><a href="https://ia.wikipedia.org/wiki/Reaction_chimic" title="Reaction chimic – interlingua" lang="ia" hreflang="ia" data-title="Reaction chimic" data-language-autonym="Interlingua" data-language-local-name="interlingua" class="interlanguage-link-target"><span>Interlingua</span></a></li><li class="interlanguage-link interwiki-zu mw-list-item"><a href="https://zu.wikipedia.org/wiki/Ukusabela_kwevanga" title="Ukusabela kwevanga – zulu" lang="zu" hreflang="zu" data-title="Ukusabela kwevanga" data-language-autonym="IsiZulu" data-language-local-name="zulu" class="interlanguage-link-target"><span>IsiZulu</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Reazione_chimica" title="Reazione chimica – italiensk" lang="it" hreflang="it" data-title="Reazione chimica" data-language-autonym="Italiano" data-language-local-name="italiensk" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%AA%D7%92%D7%95%D7%91%D7%94_%D7%9B%D7%99%D7%9E%D7%99%D7%AA" title="תגובה כימית – hebraisk" lang="he" hreflang="he" data-title="תגובה כימית" data-language-autonym="עברית" data-language-local-name="hebraisk" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-jv mw-list-item"><a href="https://jv.wikipedia.org/wiki/R%C3%A9aksi_kimia" title="Réaksi kimia – javanesisk" lang="jv" hreflang="jv" data-title="Réaksi kimia" data-language-autonym="Jawa" data-language-local-name="javanesisk" class="interlanguage-link-target"><span>Jawa</span></a></li><li class="interlanguage-link interwiki-kbp mw-list-item"><a href="https://kbp.wikipedia.org/wiki/Kp%C9%9Bl%C9%A9_kp%C9%9Bl%C9%9Bk%CA%8B%CA%8B_t%C9%9B_lakaya%C9%A3" title="Kpɛlɩ kpɛlɛkʋʋ tɛ lakayaɣ – kabiye" lang="kbp" hreflang="kbp" data-title="Kpɛlɩ kpɛlɛkʋʋ tɛ lakayaɣ" data-language-autonym="Kabɩyɛ" data-language-local-name="kabiye" class="interlanguage-link-target"><span>Kabɩyɛ</span></a></li><li class="interlanguage-link interwiki-kn mw-list-item"><a href="https://kn.wikipedia.org/wiki/%E0%B2%B0%E0%B2%BE%E0%B2%B8%E0%B2%BE%E0%B2%AF%E0%B2%A8%E0%B2%BF%E0%B2%95_%E0%B2%95%E0%B3%8D%E0%B2%B0%E0%B2%BF%E0%B2%AF%E0%B3%86" title="ರಾಸಾಯನಿಕ ಕ್ರಿಯೆ – kannada" lang="kn" hreflang="kn" data-title="ರಾಸಾಯನಿಕ ಕ್ರಿಯೆ" data-language-autonym="ಕನ್ನಡ" data-language-local-name="kannada" class="interlanguage-link-target"><span>ಕನ್ನಡ</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%A5%E1%83%98%E1%83%9B%E1%83%98%E1%83%A3%E1%83%A0%E1%83%98_%E1%83%A0%E1%83%94%E1%83%90%E1%83%A5%E1%83%AA%E1%83%98%E1%83%90" title="ქიმიური რეაქცია – georgisk" lang="ka" hreflang="ka" data-title="ქიმიური რეაქცია" data-language-autonym="ქართული" data-language-local-name="georgisk" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%A5%D0%B8%D0%BC%D0%B8%D1%8F%D0%BB%D1%8B%D2%9B_%D1%80%D0%B5%D0%B0%D0%BA%D1%86%D0%B8%D1%8F%D0%BB%D0%B0%D1%80" title="Химиялық реакциялар – kasakhisk" lang="kk" hreflang="kk" data-title="Химиялық реакциялар" data-language-autonym="Қазақша" data-language-local-name="kasakhisk" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-sw mw-list-item"><a href="https://sw.wikipedia.org/wiki/Mmenyuko_wa_kikemia" title="Mmenyuko wa kikemia – swahili" lang="sw" hreflang="sw" data-title="Mmenyuko wa kikemia" data-language-autonym="Kiswahili" data-language-local-name="swahili" class="interlanguage-link-target"><span>Kiswahili</span></a></li><li class="interlanguage-link interwiki-ht mw-list-item"><a href="https://ht.wikipedia.org/wiki/Reyaksyon_chimik" title="Reyaksyon chimik – haitisk" lang="ht" hreflang="ht" data-title="Reyaksyon chimik" data-language-autonym="Kreyòl ayisyen" data-language-local-name="haitisk" class="interlanguage-link-target"><span>Kreyòl ayisyen</span></a></li><li class="interlanguage-link interwiki-gcr mw-list-item"><a href="https://gcr.wikipedia.org/wiki/R%C3%A9aksyon_chimik" title="Réaksyon chimik – franskguyansk kreol" lang="gcr" hreflang="gcr" data-title="Réaksyon chimik" data-language-autonym="Kriyòl gwiyannen" data-language-local-name="franskguyansk kreol" class="interlanguage-link-target"><span>Kriyòl gwiyannen</span></a></li><li class="interlanguage-link interwiki-la mw-list-item"><a href="https://la.wikipedia.org/wiki/Reactio_chemica" title="Reactio chemica – latin" lang="la" hreflang="la" data-title="Reactio chemica" data-language-autonym="Latina" data-language-local-name="latin" class="interlanguage-link-target"><span>Latina</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/%C4%B6%C4%ABmisk%C4%81_reakcija" title="Ķīmiskā reakcija – latvisk" lang="lv" hreflang="lv" data-title="Ķīmiskā reakcija" data-language-autonym="Latviešu" data-language-local-name="latvisk" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Chemin%C4%97_reakcija" title="Cheminė reakcija – litauisk" lang="lt" hreflang="lt" data-title="Cheminė reakcija" data-language-autonym="Lietuvių" data-language-local-name="litauisk" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-ln mw-list-item"><a href="https://ln.wikipedia.org/wiki/Bobongoli_na_shimi" title="Bobongoli na shimi – lingala" lang="ln" hreflang="ln" data-title="Bobongoli na shimi" data-language-autonym="Lingála" data-language-local-name="lingala" class="interlanguage-link-target"><span>Lingála</span></a></li><li class="interlanguage-link interwiki-lmo mw-list-item"><a href="https://lmo.wikipedia.org/wiki/Reaziun_chimiga" title="Reaziun chimiga – lombardisk" lang="lmo" hreflang="lmo" data-title="Reaziun chimiga" data-language-autonym="Lombard" data-language-local-name="lombardisk" class="interlanguage-link-target"><span>Lombard</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/K%C3%A9miai_reakci%C3%B3" title="Kémiai reakció – ungarsk" lang="hu" hreflang="hu" data-title="Kémiai reakció" data-language-autonym="Magyar" data-language-local-name="ungarsk" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-mk badge-Q17437796 badge-featuredarticle mw-list-item" title="utmerket artikkel-merke"><a href="https://mk.wikipedia.org/wiki/%D0%A5%D0%B5%D0%BC%D0%B8%D1%81%D0%BA%D0%B0_%D1%80%D0%B5%D0%B0%D0%BA%D1%86%D0%B8%D1%98%D0%B0" title="Хемиска реакција – makedonsk" lang="mk" hreflang="mk" data-title="Хемиска реакција" data-language-autonym="Македонски" data-language-local-name="makedonsk" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-mg mw-list-item"><a href="https://mg.wikipedia.org/wiki/Fiota_simika" title="Fiota simika – gassisk" lang="mg" hreflang="mg" data-title="Fiota simika" data-language-autonym="Malagasy" data-language-local-name="gassisk" class="interlanguage-link-target"><span>Malagasy</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%B0%E0%B4%BE%E0%B4%B8%E0%B4%AA%E0%B5%8D%E0%B4%B0%E0%B4%B5%E0%B5%BC%E0%B4%A4%E0%B5%8D%E0%B4%A4%E0%B4%A8%E0%B4%82" title="രാസപ്രവർത്തനം – malayalam" lang="ml" hreflang="ml" data-title="രാസപ്രവർത്തനം" data-language-autonym="മലയാളം" data-language-local-name="malayalam" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-mt mw-list-item"><a href="https://mt.wikipedia.org/wiki/Reazzjoni_kimika" title="Reazzjoni kimika – maltesisk" lang="mt" hreflang="mt" data-title="Reazzjoni kimika" data-language-autonym="Malti" data-language-local-name="maltesisk" class="interlanguage-link-target"><span>Malti</span></a></li><li class="interlanguage-link interwiki-mr mw-list-item"><a href="https://mr.wikipedia.org/wiki/%E0%A4%B0%E0%A4%BE%E0%A4%B8%E0%A4%BE%E0%A4%AF%E0%A4%A8%E0%A4%BF%E0%A4%95_%E0%A4%AA%E0%A5%8D%E0%A4%B0%E0%A4%A4%E0%A4%BF%E0%A4%95%E0%A5%8D%E0%A4%B0%E0%A4%BF%E0%A4%AF%E0%A4%BE" title="रासायनिक प्रतिक्रिया – marathi" lang="mr" hreflang="mr" data-title="रासायनिक प्रतिक्रिया" data-language-autonym="मराठी" data-language-local-name="marathi" class="interlanguage-link-target"><span>मराठी</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Tindak_balas_kimia" title="Tindak balas kimia – malayisk" lang="ms" hreflang="ms" data-title="Tindak balas kimia" data-language-autonym="Bahasa Melayu" data-language-local-name="malayisk" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-mn mw-list-item"><a href="https://mn.wikipedia.org/wiki/%D0%A5%D0%B8%D0%BC%D0%B8%D0%B9%D0%BD_%D1%83%D1%80%D0%B2%D0%B0%D0%BB" title="Химийн урвал – mongolsk" lang="mn" hreflang="mn" data-title="Химийн урвал" data-language-autonym="Монгол" data-language-local-name="mongolsk" class="interlanguage-link-target"><span>Монгол</span></a></li><li class="interlanguage-link interwiki-my mw-list-item"><a href="https://my.wikipedia.org/wiki/%E1%80%93%E1%80%AC%E1%80%90%E1%80%AF%E1%80%93%E1%80%AC%E1%80%90%E1%80%BA%E1%80%95%E1%80%BC%E1%80%AF%E1%80%99%E1%80%BE%E1%80%AF" title="ဓာတုဓာတ်ပြုမှု – burmesisk" lang="my" hreflang="my" data-title="ဓာတုဓာတ်ပြုမှု" data-language-autonym="မြန်မာဘာသာ" data-language-local-name="burmesisk" class="interlanguage-link-target"><span>မြန်မာဘာသာ</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Chemische_reactie" title="Chemische reactie – nederlandsk" lang="nl" hreflang="nl" data-title="Chemische reactie" data-language-autonym="Nederlands" data-language-local-name="nederlandsk" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ne mw-list-item"><a href="https://ne.wikipedia.org/wiki/%E0%A4%B0%E0%A4%BE%E0%A4%B8%E0%A4%BE%E0%A4%AF%E0%A4%A8%E0%A4%BF%E0%A4%95_%E0%A4%AA%E0%A5%8D%E0%A4%B0%E0%A4%A4%E0%A4%BF%E0%A4%95%E0%A5%8D%E0%A4%B0%E0%A4%BF%E0%A4%AF%E0%A4%BE" title="रासायनिक प्रतिक्रिया – nepali" lang="ne" hreflang="ne" data-title="रासायनिक प्रतिक्रिया" data-language-autonym="नेपाली" data-language-local-name="nepali" class="interlanguage-link-target"><span>नेपाली</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E5%8C%96%E5%AD%A6%E5%8F%8D%E5%BF%9C" title="化学反応 – japansk" lang="ja" hreflang="ja" data-title="化学反応" data-language-autonym="日本語" data-language-local-name="japansk" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-frr mw-list-item"><a href="https://frr.wikipedia.org/wiki/Cheemisk_reaksioon" title="Cheemisk reaksioon – nordfrisisk" lang="frr" hreflang="frr" data-title="Cheemisk reaksioon" data-language-autonym="Nordfriisk" data-language-local-name="nordfrisisk" class="interlanguage-link-target"><span>Nordfriisk</span></a></li><li class="interlanguage-link interwiki-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/Reaccion_quimica" title="Reaccion quimica – oksitansk" lang="oc" hreflang="oc" data-title="Reaccion quimica" data-language-autonym="Occitan" data-language-local-name="oksitansk" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Kimyoviy_reaksiya" title="Kimyoviy reaksiya – usbekisk" lang="uz" hreflang="uz" data-title="Kimyoviy reaksiya" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="usbekisk" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-pa mw-list-item"><a href="https://pa.wikipedia.org/wiki/%E0%A8%B0%E0%A8%B8%E0%A8%BE%E0%A8%87%E0%A8%A3%E0%A8%95_%E0%A8%95%E0%A8%BF%E0%A8%B0%E0%A8%BF%E0%A8%86" title="ਰਸਾਇਣਕ ਕਿਰਿਆ – panjabi" lang="pa" hreflang="pa" data-title="ਰਸਾਇਣਕ ਕਿਰਿਆ" data-language-autonym="ਪੰਜਾਬੀ" data-language-local-name="panjabi" class="interlanguage-link-target"><span>ਪੰਜਾਬੀ</span></a></li><li class="interlanguage-link interwiki-pnb mw-list-item"><a href="https://pnb.wikipedia.org/wiki/%DA%A9%DB%8C%D9%85%DB%8C%D8%A7%D8%A6%DB%8C_%D8%AA%D8%B9%D8%A7%D9%85%D9%84" title="کیمیائی تعامل – vestpunjabi" lang="pnb" hreflang="pnb" data-title="کیمیائی تعامل" data-language-autonym="پنجابی" data-language-local-name="vestpunjabi" class="interlanguage-link-target"><span>پنجابی</span></a></li><li class="interlanguage-link interwiki-jam mw-list-item"><a href="https://jam.wikipedia.org/wiki/Kimikal_riakshan" title="Kimikal riakshan – jamaicansk kreolengelsk" lang="jam" hreflang="jam" data-title="Kimikal riakshan" data-language-autonym="Patois" data-language-local-name="jamaicansk kreolengelsk" class="interlanguage-link-target"><span>Patois</span></a></li><li class="interlanguage-link interwiki-km mw-list-item"><a href="https://km.wikipedia.org/wiki/%E1%9E%94%E1%9F%92%E1%9E%9A%E1%9E%8F%E1%9E%B7%E1%9E%80%E1%9E%98%E1%9F%92%E1%9E%98%E1%9E%82%E1%9E%B8%E1%9E%98%E1%9E%B8" title="ប្រតិកម្មគីមី – khmer" lang="km" hreflang="km" data-title="ប្រតិកម្មគីមី" data-language-autonym="ភាសាខ្មែរ" data-language-local-name="khmer" class="interlanguage-link-target"><span>ភាសាខ្មែរ</span></a></li><li class="interlanguage-link interwiki-nds mw-list-item"><a href="https://nds.wikipedia.org/wiki/Cheemsch_Reakschoon" title="Cheemsch Reakschoon – nedertysk" lang="nds" hreflang="nds" data-title="Cheemsch Reakschoon" data-language-autonym="Plattdüütsch" data-language-local-name="nedertysk" class="interlanguage-link-target"><span>Plattdüütsch</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Reakcja_chemiczna" title="Reakcja chemiczna – polsk" lang="pl" hreflang="pl" data-title="Reakcja chemiczna" data-language-autonym="Polski" data-language-local-name="polsk" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Rea%C3%A7%C3%A3o_qu%C3%ADmica" title="Reação química – portugisisk" lang="pt" hreflang="pt" data-title="Reação química" data-language-autonym="Português" data-language-local-name="portugisisk" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-kaa mw-list-item"><a href="https://kaa.wikipedia.org/wiki/Ximiyal%C4%B1q_reakciya" title="Ximiyalıq reakciya – karakalpakisk" lang="kaa" hreflang="kaa" data-title="Ximiyalıq reakciya" data-language-autonym="Qaraqalpaqsha" data-language-local-name="karakalpakisk" class="interlanguage-link-target"><span>Qaraqalpaqsha</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Reac%C8%9Bie_chimic%C4%83" title="Reacție chimică – rumensk" lang="ro" hreflang="ro" data-title="Reacție chimică" data-language-autonym="Română" data-language-local-name="rumensk" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-qu mw-list-item"><a href="https://qu.wikipedia.org/wiki/Ruranakuy" title="Ruranakuy – quechua" lang="qu" hreflang="qu" data-title="Ruranakuy" data-language-autonym="Runa Simi" data-language-local-name="quechua" class="interlanguage-link-target"><span>Runa Simi</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%A5%D0%B8%D0%BC%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B0%D1%8F_%D1%80%D0%B5%D0%B0%D0%BA%D1%86%D0%B8%D1%8F" title="Химическая реакция – russisk" lang="ru" hreflang="ru" data-title="Химическая реакция" data-language-autonym="Русский" data-language-local-name="russisk" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sq mw-list-item"><a href="https://sq.wikipedia.org/wiki/Reaksioni_kimik" title="Reaksioni kimik – albansk" lang="sq" hreflang="sq" data-title="Reaksioni kimik" data-language-autonym="Shqip" data-language-local-name="albansk" class="interlanguage-link-target"><span>Shqip</span></a></li><li class="interlanguage-link interwiki-scn mw-list-item"><a href="https://scn.wikipedia.org/wiki/Riazzioni_ch%C3%ACmica" title="Riazzioni chìmica – siciliansk" lang="scn" hreflang="scn" data-title="Riazzioni chìmica" data-language-autonym="Sicilianu" data-language-local-name="siciliansk" class="interlanguage-link-target"><span>Sicilianu</span></a></li><li class="interlanguage-link interwiki-si mw-list-item"><a href="https://si.wikipedia.org/wiki/%E0%B6%BB%E0%B7%83%E0%B7%8F%E0%B6%BA%E0%B6%B1%E0%B7%92%E0%B6%9A_%E0%B6%B4%E0%B7%8A%E2%80%8D%E0%B6%BB%E0%B6%AD%E0%B7%92%E0%B6%9A%E0%B7%8A%E2%80%8D%E0%B6%BB%E0%B7%92%E0%B6%BA%E0%B7%8F" title="රසායනික ප්‍රතික්‍රියා – singalesisk" lang="si" hreflang="si" data-title="රසායනික ප්‍රතික්‍රියා" data-language-autonym="සිංහල" data-language-local-name="singalesisk" class="interlanguage-link-target"><span>සිංහල</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Chemical_reaction" title="Chemical reaction – enkel engelsk" lang="en-simple" hreflang="en-simple" data-title="Chemical reaction" data-language-autonym="Simple English" data-language-local-name="enkel engelsk" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sd mw-list-item"><a href="https://sd.wikipedia.org/wiki/%DA%AA%D9%8A%D9%85%D9%8A%D8%A7%D8%A6%D9%8A_%D8%B9%D9%85%D9%84" title="ڪيميائي عمل – sindhi" lang="sd" hreflang="sd" data-title="ڪيميائي عمل" data-language-autonym="سنڌي" data-language-local-name="sindhi" class="interlanguage-link-target"><span>سنڌي</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Chemick%C3%A1_reakcia" title="Chemická reakcia – slovakisk" lang="sk" hreflang="sk" data-title="Chemická reakcia" data-language-autonym="Slovenčina" data-language-local-name="slovakisk" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl badge-Q17437796 badge-featuredarticle mw-list-item" title="utmerket artikkel-merke"><a href="https://sl.wikipedia.org/wiki/Kemi%C4%8Dna_reakcija" title="Kemična reakcija – slovensk" lang="sl" hreflang="sl" data-title="Kemična reakcija" data-language-autonym="Slovenščina" data-language-local-name="slovensk" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-so mw-list-item"><a href="https://so.wikipedia.org/wiki/Kimikal_dibusocod" title="Kimikal dibusocod – somali" lang="so" hreflang="so" data-title="Kimikal dibusocod" data-language-autonym="Soomaaliga" data-language-local-name="somali" class="interlanguage-link-target"><span>Soomaaliga</span></a></li><li class="interlanguage-link interwiki-ckb mw-list-item"><a href="https://ckb.wikipedia.org/wiki/%DA%A9%D8%A7%D8%B1%D8%AF%D8%A7%D9%86%DB%95%D9%88%DB%95%DB%8C_%DA%A9%DB%8C%D9%85%DB%8C%D8%A7%DB%8C%DB%8C" title="کاردانەوەی کیمیایی – sentralkurdisk" lang="ckb" hreflang="ckb" data-title="کاردانەوەی کیمیایی" data-language-autonym="کوردی" data-language-local-name="sentralkurdisk" class="interlanguage-link-target"><span>کوردی</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%A5%D0%B5%D0%BC%D0%B8%D1%98%D1%81%D0%BA%D0%B0_%D1%80%D0%B5%D0%B0%D0%BA%D1%86%D0%B8%D1%98%D0%B0" title="Хемијска реакција – serbisk" lang="sr" hreflang="sr" data-title="Хемијска реакција" data-language-autonym="Српски / srpski" data-language-local-name="serbisk" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Hemijska_reakcija" title="Hemijska reakcija – serbokroatisk" lang="sh" hreflang="sh" data-title="Hemijska reakcija" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="serbokroatisk" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-su mw-list-item"><a href="https://su.wikipedia.org/wiki/R%C3%A9aksi_kimiawi" title="Réaksi kimiawi – sundanesisk" lang="su" hreflang="su" data-title="Réaksi kimiawi" data-language-autonym="Sunda" data-language-local-name="sundanesisk" class="interlanguage-link-target"><span>Sunda</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Kemiallinen_reaktio" title="Kemiallinen reaktio – finsk" lang="fi" hreflang="fi" data-title="Kemiallinen reaktio" data-language-autonym="Suomi" data-language-local-name="finsk" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-tl mw-list-item"><a href="https://tl.wikipedia.org/wiki/Reaksiyong_kimikal" title="Reaksiyong kimikal – tagalog" lang="tl" hreflang="tl" data-title="Reaksiyong kimikal" data-language-autonym="Tagalog" data-language-local-name="tagalog" class="interlanguage-link-target"><span>Tagalog</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%B5%E0%AF%87%E0%AE%A4%E0%AE%BF_%E0%AE%B5%E0%AE%BF%E0%AE%A9%E0%AF%88" title="வேதி வினை – tamil" lang="ta" hreflang="ta" data-title="வேதி வினை" data-language-autonym="தமிழ்" data-language-local-name="tamil" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-kab mw-list-item"><a href="https://kab.wikipedia.org/wiki/Tasedmirt_takrurant" title="Tasedmirt takrurant – kabylsk" lang="kab" hreflang="kab" data-title="Tasedmirt takrurant" data-language-autonym="Taqbaylit" data-language-local-name="kabylsk" class="interlanguage-link-target"><span>Taqbaylit</span></a></li><li class="interlanguage-link interwiki-te mw-list-item"><a href="https://te.wikipedia.org/wiki/%E0%B0%B0%E0%B0%B8%E0%B0%BE%E0%B0%AF%E0%B0%A8_%E0%B0%AA%E0%B1%8D%E0%B0%B0%E0%B0%A4%E0%B0%BF%E0%B0%9A%E0%B0%B0%E0%B1%8D%E0%B0%AF" title="రసాయన ప్రతిచర్య – telugu" lang="te" hreflang="te" data-title="రసాయన ప్రతిచర్య" data-language-autonym="తెలుగు" data-language-local-name="telugu" class="interlanguage-link-target"><span>తెలుగు</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%9B%E0%B8%8F%E0%B8%B4%E0%B8%81%E0%B8%B4%E0%B8%A3%E0%B8%B4%E0%B8%A2%E0%B8%B2%E0%B9%80%E0%B8%84%E0%B8%A1%E0%B8%B5" title="ปฏิกิริยาเคมี – thai" lang="th" hreflang="th" data-title="ปฏิกิริยาเคมี" data-language-autonym="ไทย" data-language-local-name="thai" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-ti mw-list-item"><a href="https://ti.wikipedia.org/wiki/%E1%8A%A8%E1%88%9A%E1%8A%AB%E1%88%8D_%E1%88%AA%E1%8A%A3%E1%8A%AD%E1%88%BD%E1%8A%95" title="ከሚካል ሪኣክሽን – tigrinja" lang="ti" hreflang="ti" data-title="ከሚካል ሪኣክሽን" data-language-autonym="ትግርኛ" data-language-local-name="tigrinja" class="interlanguage-link-target"><span>ትግርኛ</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Kimyasal_reaksiyon" title="Kimyasal reaksiyon – tyrkisk" lang="tr" hreflang="tr" data-title="Kimyasal reaksiyon" data-language-autonym="Türkçe" data-language-local-name="tyrkisk" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-tk mw-list-item"><a href="https://tk.wikipedia.org/wiki/Himiki_reaksi%C3%BDa" title="Himiki reaksiýa – turkmensk" lang="tk" hreflang="tk" data-title="Himiki reaksiýa" data-language-autonym="Türkmençe" data-language-local-name="turkmensk" class="interlanguage-link-target"><span>Türkmençe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%A5%D1%96%D0%BC%D1%96%D1%87%D0%BD%D0%B0_%D1%80%D0%B5%D0%B0%D0%BA%D1%86%D1%96%D1%8F" title="Хімічна реакція – ukrainsk" lang="uk" hreflang="uk" data-title="Хімічна реакція" data-language-autonym="Українська" data-language-local-name="ukrainsk" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-ur mw-list-item"><a href="https://ur.wikipedia.org/wiki/%DA%A9%DB%8C%D9%85%DB%8C%D8%A7%D8%A6%DB%8C_%D8%AA%D8%B9%D8%A7%D9%85%D9%84" title="کیمیائی تعامل – urdu" lang="ur" hreflang="ur" data-title="کیمیائی تعامل" data-language-autonym="اردو" data-language-local-name="urdu" class="interlanguage-link-target"><span>اردو</span></a></li><li class="interlanguage-link interwiki-ug mw-list-item"><a href="https://ug.wikipedia.org/wiki/%D8%AE%D9%89%D9%85%D9%89%D9%8A%D9%89%D9%84%D9%89%D9%83_%D8%B1%DB%90%D8%A6%D8%A7%D9%83%D8%B3%D9%89%D9%8A%DB%95" title="خىمىيىلىك رېئاكسىيە – uigurisk" lang="ug" hreflang="ug" data-title="خىمىيىلىك رېئاكسىيە" data-language-autonym="ئۇيغۇرچە / Uyghurche" data-language-local-name="uigurisk" class="interlanguage-link-target"><span>ئۇيغۇرچە / Uyghurche</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Ph%E1%BA%A3n_%E1%BB%A9ng_h%C3%B3a_h%E1%BB%8Dc" title="Phản ứng hóa học – vietnamesisk" lang="vi" hreflang="vi" data-title="Phản ứng hóa học" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamesisk" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-fiu-vro mw-list-item"><a href="https://fiu-vro.wikipedia.org/wiki/Aadomid%C3%B5_%C3%BCmbreistmine" title="Aadomidõ ümbreistmine – sørestisk" lang="vro" hreflang="vro" data-title="Aadomidõ ümbreistmine" data-language-autonym="Võro" data-language-local-name="sørestisk" class="interlanguage-link-target"><span>Võro</span></a></li><li class="interlanguage-link interwiki-zh-classical mw-list-item"><a href="https://zh-classical.wikipedia.org/wiki/%E5%8C%96%E5%AD%B8%E5%8F%8D%E6%87%89" title="化學反應 – klassisk kinesisk" lang="lzh" hreflang="lzh" data-title="化學反應" data-language-autonym="文言" data-language-local-name="klassisk kinesisk" class="interlanguage-link-target"><span>文言</span></a></li><li class="interlanguage-link interwiki-war mw-list-item"><a href="https://war.wikipedia.org/wiki/Reaksyon_hin_kimikal" title="Reaksyon hin kimikal – waray-waray" lang="war" hreflang="war" data-title="Reaksyon hin kimikal" data-language-autonym="Winaray" data-language-local-name="waray-waray" class="interlanguage-link-target"><span>Winaray</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E5%8C%96%E5%AD%A6%E5%8F%8D%E5%BA%94" title="化学反应 – wu" lang="wuu" hreflang="wuu" data-title="化学反应" data-language-autonym="吴语" data-language-local-name="wu" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-yi mw-list-item"><a href="https://yi.wikipedia.org/wiki/%D7%9B%D7%A2%D7%9E%D7%99%D7%A9%D7%A2_%D7%A8%D7%A2%D7%90%D7%A7%D7%A6%D7%99%D7%A2" title="כעמישע רעאקציע – jiddisk" lang="yi" hreflang="yi" data-title="כעמישע רעאקציע" data-language-autonym="ייִדיש" data-language-local-name="jiddisk" class="interlanguage-link-target"><span>ייִדיש</span></a></li><li class="interlanguage-link interwiki-yo mw-list-item"><a href="https://yo.wikipedia.org/wiki/%C3%8Cdarap%E1%BB%8D%CC%80m%E1%BB%8D%CC%81ra_k%E1%BA%B9%CC%81m%C3%ADk%C3%A0" title="Ìdarapọ̀mọ́ra kẹ́míkà – joruba" lang="yo" hreflang="yo" data-title="Ìdarapọ̀mọ́ra kẹ́míkà" data-language-autonym="Yorùbá" data-language-local-name="joruba" class="interlanguage-link-target"><span>Yorùbá</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E5%8C%96%E5%AD%B8%E5%8F%8D%E6%87%89" title="化學反應 – kantonesisk" lang="yue" hreflang="yue" data-title="化學反應" data-language-autonym="粵語" data-language-local-name="kantonesisk" class="interlanguage-link-target"><span>粵語</span></a></li><li class="interlanguage-link interwiki-diq mw-list-item"><a href="https://diq.wikipedia.org/wiki/Reaksiyono_kimyasal" title="Reaksiyono kimyasal – dimli" lang="diq" hreflang="diq" data-title="Reaksiyono kimyasal" data-language-autonym="Zazaki" data-language-local-name="dimli" class="interlanguage-link-target"><span>Zazaki</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E5%8C%96%E5%AD%A6%E5%8F%8D%E5%BA%94" title="化学反应 – kinesisk" lang="zh" hreflang="zh" data-title="化学反应" data-language-autonym="中文" data-language-local-name="kinesisk" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q36534#sitelinks-wikipedia" title="Rediger lenker til artikkelen på andre språk" class="wbc-editpage">Rediger lenker</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Navnerom"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Kjemisk_reaksjon" title="Vis innholdssiden [c]" accesskey="c"><span>Artikkel</span></a></li><li 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href="/wiki/Fil:Hydrochloric_acid_ammonia.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a0/Hydrochloric_acid_ammonia.jpg/250px-Hydrochloric_acid_ammonia.jpg" decoding="async" width="250" height="246" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/a/a0/Hydrochloric_acid_ammonia.jpg 1.5x" data-file-width="301" data-file-height="296" /></a><figcaption><a href="/wiki/Ammoniakk" title="Ammoniakk">Ammoniakk</a> som reagerer med <a href="/wiki/Saltsyre" title="Saltsyre">saltsyre</a> er en <a href="/wiki/Eksoterm_reaksjon" title="Eksoterm reaksjon">eksoterm</a> <a href="/wiki/Syre" title="Syre">syre</a>/<a href="/wiki/Base" title="Base">base</a>-reaksjon.</figcaption></figure> <p>En <b>kjemisk reaksjon</b> er en prosess hvor ett eller flere <a href="/wiki/Kjemisk_substans" title="Kjemisk substans">stoff</a> reagerer og danner en eller flere nye <a href="/wiki/Kjemisk_forbindelse" title="Kjemisk forbindelse">forbindelser</a>. Stoffene som reagerer kalles <a href="/wiki/Reaktant" title="Reaktant">reaktanter</a>, og stoffene som dannes kalles <a href="/wiki/Reaksjonsprodukt" class="mw-redirect" title="Reaksjonsprodukt">reaksjonsprodukter</a>. </p><p>Kjemiske reaksjoner kjennetegnes ved at det foregår en <a href="/w/index.php?title=Kjemisk_endring&action=edit&redlink=1" class="new" title="Kjemisk endring (ikke skrevet ennå)">kjemisk endring</a> av stoffene som inngår i reaksjonen. Is som <a href="/wiki/Smelting" title="Smelting">smelter</a> og blir til <a href="/wiki/Vann" title="Vann">vann</a> i <a href="/wiki/V%C3%A6ske" title="Væske">væskeform</a>, er ikke en kjemisk reaksjon. Det er vannmolekyler (H<sub>2</sub>O) både før og etter smeltingen. Vannet har ikke gjennomgått noen kjemisk endring. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Historie">Historie</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Kjemisk_reaksjon&veaction=edit&section=1" title="Rediger avsnitt: Historie" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Kjemisk_reaksjon&action=edit&section=1" title="Rediger kildekoden til seksjonen Historie"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Fil:David_-_Portrait_of_Monsieur_Lavoisier_(cropped).jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/85/David_-_Portrait_of_Monsieur_Lavoisier_%28cropped%29.jpg/250px-David_-_Portrait_of_Monsieur_Lavoisier_%28cropped%29.jpg" decoding="async" width="250" height="289" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/85/David_-_Portrait_of_Monsieur_Lavoisier_%28cropped%29.jpg/375px-David_-_Portrait_of_Monsieur_Lavoisier_%28cropped%29.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/85/David_-_Portrait_of_Monsieur_Lavoisier_%28cropped%29.jpg/500px-David_-_Portrait_of_Monsieur_Lavoisier_%28cropped%29.jpg 2x" data-file-width="1097" data-file-height="1266" /></a><figcaption><a href="/wiki/Antoine_Lavoisier" title="Antoine Lavoisier">Antoine Lavoisier</a> utviklet teorien om at forbrenning var restultat av en kjemisk reaksjon med oksygen</figcaption></figure> <p>Kjemiske reaksjoner som forbrenning i <a href="/wiki/Ild" title="Ild">ild</a>, <a href="/wiki/Fermentering" title="Fermentering">gjæring</a> og reduksjon av malm til metaller har vært kjent siden antikken. Tidlige teorier om transformasjon av materialer ble utviklet av greske filosofer, for eksempel <a href="/wiki/Elementene" class="mw-redirect" title="Elementene">elementteorien</a> av <a href="/wiki/Empedokles" title="Empedokles">Empedokles</a> om at alle stoffer er sammensatt av de fire grunnelementene - ild, vann, luft og jord. I middelalderen ble kjemiske transformasjoner studert av <a href="/wiki/Alkymi" title="Alkymi">alkymister</a>. De forsøkte å gjøre <a href="/wiki/Bly" title="Bly">bly</a> om til <a href="/wiki/Gull" title="Gull">gull</a>, og de ekesperimenterte blant annet med reaksjoner mellom bly og bly-legeringer og <a href="/wiki/Svovel" title="Svovel">svovel</a>.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p><p>Produksjonen av kjemiske stoffer som normalt ikke forekommer i naturen har lenge vært forsøkt, som syntesen mellom <a href="/wiki/Svovelsyre" title="Svovelsyre">svovelsyre</a> og <a href="/wiki/Salpetersyre" title="Salpetersyre">salpetersyre</a> som tilskrives den kontroversielle alkymisten <a href="/wiki/Geber" title="Geber">Jabir Ibn Hayyān</a>. Prosessen involverte oppvarming av sulfat- og nitratmineraler som <a href="/wiki/Bl%C3%A5stein" class="mw-redirect" title="Blåstein">kobbersulfat</a>, <a href="/wiki/Alun" title="Alun">alun</a> og <a href="/wiki/Kaliumnitrat" title="Kaliumnitrat">salpeter</a>. I det 17. århundre produserte <a href="/w/index.php?title=Johann_Rudolph_Glauber&action=edit&redlink=1" class="new" title="Johann Rudolph Glauber (ikke skrevet ennå)">Johann Rudolph Glauber</a> <a href="/wiki/Saltsyre" title="Saltsyre">saltsyre</a> og <a href="/wiki/Natriumsulfat" title="Natriumsulfat">natriumsulfat</a> ved å reagere svovelsyre og <a href="/wiki/Natriumklorid" class="mw-redirect" title="Natriumklorid">natriumklorid</a>. Med utviklingen av <a href="/w/index.php?title=Blykammerprosessen&action=edit&redlink=1" class="new" title="Blykammerprosessen (ikke skrevet ennå)">blykammerprosessen</a> i 1746 og <a href="/w/index.php?title=Leblanc-prosessen&action=edit&redlink=1" class="new" title="Leblanc-prosessen (ikke skrevet ennå)">Leblanc-prosessen</a>, som muliggjorde storskala produksjon av henholdsvis svovelsyre og <a href="/wiki/Natriumkarbonat" title="Natriumkarbonat">natriumkarbonat</a>, ble kjemiske reaksjoner implementert inn i industrien. Videre optimalisering av svovelsyreteknologi resulterte i <a href="/w/index.php?title=Kontaktprosessen&action=edit&redlink=1" class="new" title="Kontaktprosessen (ikke skrevet ennå)">kontaktprosessen</a> i 1880<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>, og i 1909-1910 ble <a href="/wiki/Haberprosessen" class="mw-redirect" title="Haberprosessen">Haberprosessen</a> utviklet for <a href="/wiki/Ammoniakk" title="Ammoniakk">ammoniakksyntese</a>.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p><p>Fra det 16. århundre forsøkte forskere som <a href="/wiki/Johann_Baptist_van_Helmont" title="Johann Baptist van Helmont">Johann Baptist van Helmont</a>, <a href="/wiki/Robert_Boyle" title="Robert Boyle">Robert Boyle</a> og <a href="/wiki/Isaac_Newton" title="Isaac Newton">Isaac Newton</a> å etablere teorier om eksperimentelt observerte kjemiske transformasjoner. Den <a href="/wiki/Flogiston" title="Flogiston">flogistonteorien</a> ble foreslått i 1667 av <a href="/w/index.php?title=Johann_Joachim_Becher&action=edit&redlink=1" class="new" title="Johann Joachim Becher (ikke skrevet ennå)">Johann Joachim Becher</a>. Det postulerte eksistensen av en ild-lignende element kalt "flogiston", som var lagret i brennbare objekter og frigjort ved <a href="/wiki/Forbrenning" title="Forbrenning">forbrenning</a>. Dette viste seg å være feil i 1785 da <a href="/wiki/Antoine_Lavoisier" title="Antoine Lavoisier">Antoine Lavoisier</a> fant den riktige forklaringen på forbrenning som en reaksjon med oksygen fra lufta.<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p><p><a href="/w/index.php?title=Joseph_Louis_Gay-Lussac&action=edit&redlink=1" class="new" title="Joseph Louis Gay-Lussac (ikke skrevet ennå)">Joseph Louis Gay-Lussac</a> fant i 1808 at gasser alltid reagerte i en viss sammenheng med hverandre. Basert på denne ideen og atomteorien av <a href="/wiki/John_Dalton" title="John Dalton">John Dalton</a> utviklet <a href="/w/index.php?title=Joseph_Prousts&action=edit&redlink=1" class="new" title="Joseph Prousts (ikke skrevet ennå)">Joseph Prousts</a> hadde utviklet <a href="/w/index.php?title=Loven_om_konstante_proporsjoner&action=edit&redlink=1" class="new" title="Loven om konstante proporsjoner (ikke skrevet ennå)">loven om konstante proporsjoner</a>, som senere resulterte i begrepene <a href="/wiki/St%C3%B8kiometri" title="Støkiometri">støkiometri</a> og <a href="/wiki/Kjemisk_ligning" class="mw-redirect" title="Kjemisk ligning">kjemisk ligning</a>.<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p><p>Når det gjelder <a href="/wiki/Organisk_kjemi" title="Organisk kjemi">organisk kjemi</a> ble det lenge ment at forbindelsene innhentet fra levende organismer var for komplisert til å kunne framstilles <a href="/wiki/Kjemisk_syntese" title="Kjemisk syntese">syntetisk</a>. <a href="/wiki/Vitalisme" title="Vitalisme">Vitalisme</a> var navnet på en posisjon som hevdet at organisk materiale inneholdt en "vital kraft" som skilte det fra uorganiske materialer. Denne posisjonen blei imidlertid tilbakevist da <a href="/wiki/Friedrich_W%C3%B6hler" title="Friedrich Wöhler">Friedrich Wöhler</a> i 1828 framstilte <a href="/wiki/Urea" title="Urea">urea</a> syntetisk fra uorganiske materialer. Andre kjemikere som brakte store bidrag til organisk kjemi inkluderer <a href="/w/index.php?title=Alexander_William_Williamson&action=edit&redlink=1" class="new" title="Alexander William Williamson (ikke skrevet ennå)">Alexander William Williamson</a> med sin syntesegass av <a href="/wiki/Eter_(kjemi)" title="Eter (kjemi)">etere</a> og <a href="/w/index.php?title=Christopher_Kelk_Ingold&action=edit&redlink=1" class="new" title="Christopher Kelk Ingold (ikke skrevet ennå)">Christopher Kelk Ingold</a>, som blant mange funn etablerte mekanismer for <a href="/wiki/Substitusjonsreaksjon" title="Substitusjonsreaksjon">substitusjonsreaksjoner</a>. </p> <div class="mw-heading mw-heading2"><h2 id="Ulike_typer_kjemiske_reaksjoner">Ulike typer kjemiske reaksjoner</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Kjemisk_reaksjon&veaction=edit&section=2" title="Rediger avsnitt: Ulike typer kjemiske reaksjoner" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Kjemisk_reaksjon&action=edit&section=2" title="Rediger kildekoden til seksjonen Ulike typer kjemiske reaksjoner"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Kjemiske reaksjoner kan foregå på mange ulike måter, og det er vanlig å klassifisere dem i ulike typer. Mange reaksjoner vil overlappe flere av reaksjonstypene. Noen vanlige reaksjonstyper er </p> <ul><li><a href="/wiki/Redoksreaksjon" title="Redoksreaksjon">redoksreaksjoner</a></li> <li><a href="/wiki/Syre-base-reaksjon" class="mw-redirect" title="Syre-base-reaksjon">syre-base-reaksjon</a></li> <li><a href="/wiki/Fellingsreaksjon" title="Fellingsreaksjon">fellingsreaksjon</a></li> <li><a href="/wiki/Kompleksdanninger" title="Kompleksdanninger">kompleksdanninger</a></li> <li><a href="/wiki/Hydrolyse" title="Hydrolyse">hydrolyse</a></li> <li><a href="/wiki/Dehydratisering" title="Dehydratisering">dehydratisering</a></li> <li><a href="/wiki/Polymerisering" title="Polymerisering">polymerisering</a></li> <li><a href="/wiki/Kondensasjonsreaksjon" title="Kondensasjonsreaksjon">kondensasjonsreaksjoner</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Reaksjonsligninger">Reaksjonsligninger</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Kjemisk_reaksjon&veaction=edit&section=3" title="Rediger avsnitt: Reaksjonsligninger" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Kjemisk_reaksjon&action=edit&section=3" title="Rediger kildekoden til seksjonen Reaksjonsligninger"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="utdypende-artikkel" style="padding-left:2em; font-style: italic;"> <p>Utdypende artikkel: <a href="/wiki/Ligning_(kjemi)" title="Ligning (kjemi)">Ligning (kjemi)</a> </p> </div> <p>En kjemisk reaksjon beskrives gjerne i en såkalt <i>reaksjonsligning</i> som illustrerer reaksjonen grafisk. <a href="/wiki/Kjemisk_symbol" class="mw-redirect" title="Kjemisk symbol">Kjemiske symboler</a> brukes for å angi hvilke stoffer som inngår i reaksjonen, og <a href="/wiki/St%C3%B8kiometri" title="Støkiometri">støkiometriske</a> <a href="/wiki/Koeffisient" title="Koeffisient">koeffisienter</a> foran symbolene angir forholdene mellom stoffene i reaksjonen. </p><p>Et eksempel på en reaksjonsligning er <a href="/wiki/Hydrogen" title="Hydrogen">hydrogengass</a> (H<sub>2</sub>) som reagerer med <a href="/wiki/Oksygen" title="Oksygen">oksygen</a> (O<sub>2</sub>), og danner vann (H<sub>2</sub>O) i væskeform. Denne reaksjonen skrives slik: </p> <dl><dd>2H<sub>2</sub> + O<sub>2</sub> → 2H<sub>2</sub>O</dd></dl> <p>Pilen i ligningene (→) kan leses som "<i>går til</i>". På venstre side av pilen står reaktantene, og på høyre side står produktene. Når det er piler i begge retninger, angir det at reaksjonen er enten <a href="/w/index.php?title=Reversibel_reaksjon&action=edit&redlink=1" class="new" title="Reversibel reaksjon (ikke skrevet ennå)">reversibel</a> (⇆) eller i <a href="/wiki/Kjemisk_likevekt" title="Kjemisk likevekt">kjemisk likevekt</a> (⇌). </p><p>Ligningen er balansert med såkalte <a href="/wiki/St%C3%B8kiometri" title="Støkiometri">støkiometriske</a> koeffisienter. Disse angir hvor mange molekyler av hvert stoff som inngår i reaksjonen. </p> <figure class="mw-halign-left" typeof="mw:File/Thumb"><a href="/wiki/Fil:Baeyer-Villiger-Oxidation-V1.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/3/3c/Baeyer-Villiger-Oxidation-V1.svg/750px-Baeyer-Villiger-Oxidation-V1.svg.png" decoding="async" width="750" height="89" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/3c/Baeyer-Villiger-Oxidation-V1.svg/1125px-Baeyer-Villiger-Oxidation-V1.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/3c/Baeyer-Villiger-Oxidation-V1.svg/1500px-Baeyer-Villiger-Oxidation-V1.svg.png 2x" data-file-width="1568" data-file-height="186" /></a><figcaption>Et eksempel på organisk reaksjon: <a href="/wiki/Oksidasjon" title="Oksidasjon">Oksidasjon</a> av <a href="/wiki/Keton" title="Keton">ketoner</a> til <a href="/wiki/Ester" title="Ester">estere</a> med syre</figcaption></figure> <div style="clear:both"></div> <div class="mw-heading mw-heading2"><h2 id="Kjemisk_likevekt_og_reaksjonshastighet">Kjemisk likevekt og reaksjonshastighet</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Kjemisk_reaksjon&veaction=edit&section=4" title="Rediger avsnitt: Kjemisk likevekt og reaksjonshastighet" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Kjemisk_reaksjon&action=edit&section=4" title="Rediger kildekoden til seksjonen Kjemisk likevekt og reaksjonshastighet"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>I de fleste reaksjoner vil reaksjonsproduktene samtidig brytes ned og gå tilbake til utgangsstoffene, og det vil etter en tid oppstå likevekt mellom <a href="/wiki/Reaksjonshastighet" class="mw-redirect" title="Reaksjonshastighet">reaksjonshastighetene</a> begge veier. Reaksjonshastigheten er til enhver tid avhengig av konsentrasjonen av de ulike stoffene samt <a href="/wiki/Trykk" title="Trykk">trykk</a> og <a href="/wiki/Temperatur" title="Temperatur">temperatur</a>. Dette kalles <a href="/wiki/Kjemisk_likevekt" title="Kjemisk likevekt">likevektsreaksjoner</a>, og beskrives i <a href="/wiki/Kjemisk_ligning" class="mw-redirect" title="Kjemisk ligning">reaksjonsformler</a> etter <a href="/w/index.php?title=Br%C3%B8nsted&action=edit&redlink=1" class="new" title="Brønsted (ikke skrevet ennå)">Brønsted-Lowry</a>-prinsippet. I tillegg vil en <a href="/wiki/Katalysator" title="Katalysator">katalysator</a> påvirke reaksjonshastigheten i større eller mindre grad, men vil ikke påvirke selve likevekten. </p><p>Alle reaksjoner skjer hurtigere ved høyere temperatur, men likevekten kan da være forskjøvet mot utgangsstoff til ulempe for produktutbyttet. I <a href="/wiki/Industri" title="Industri">industrielle</a> kjemiske prosesser er reaksjonsbetingelsene (konsentrasjon, trykk, temperatur) oftest justert til et kompromiss mellom hastighet og utbytte. </p> <div class="mw-heading mw-heading2"><h2 id="Eksoterme_og_endoterme_reaksjoner">Eksoterme og endoterme reaksjoner</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Kjemisk_reaksjon&veaction=edit&section=5" title="Rediger avsnitt: Eksoterme og endoterme reaksjoner" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Kjemisk_reaksjon&action=edit&section=5" title="Rediger kildekoden til seksjonen Eksoterme og endoterme reaksjoner"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>I noen kjemiske reaksjoner blir <a href="/wiki/Energi" title="Energi">energi</a> utviklet og avgis som <a href="/wiki/Varme" title="Varme">varme</a>. I andre reaksjoner må energi tilføres utenfra for at reaksjonen skal skje. Begge typer reaksjoner kan være <a href="/w/index.php?title=Spontan_reaksjon&action=edit&redlink=1" class="new" title="Spontan reaksjon (ikke skrevet ennå)">spontane</a>, avhengig av trykk og temperatur. </p><p>En reaksjon som utvikler energi kalles for en <a href="/wiki/Eksoterm_reaksjon" title="Eksoterm reaksjon">eksoterm reaksjon</a>. Et eksempel på dette ser vi når vi tenner på et <a href="/wiki/Magnesium" title="Magnesium">magnesiumband</a>. Bandet brenner med en intens hvit flamme og gir fra seg energi. </p> <dl><dd>2Mg + O<sub>2</sub> → 2MgO + energi</dd></dl> <p>En reaksjon som krever energi for at den skal gå, kalles for en <a href="/wiki/Endoterm_reaksjon" title="Endoterm reaksjon">endoterm reaksjon</a>. Dersom for eksempel <a href="/wiki/Nitrogen" title="Nitrogen">nitrogen</a> og <a href="/wiki/Oksygen" title="Oksygen">oksygen</a> skal reagere med hverandre, må det tilføres energi. Reaksjonen er endoterm. </p> <dl><dd>N<sub>2</sub> + O<sub>2</sub> + energi → 2NO</dd></dl> <div class="mw-heading mw-heading2"><h2 id="Hverdagseksempler">Hverdagseksempler</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Kjemisk_reaksjon&veaction=edit&section=6" title="Rediger avsnitt: Hverdagseksempler" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Kjemisk_reaksjon&action=edit&section=6" title="Rediger kildekoden til seksjonen Hverdagseksempler"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><b>Raske reaksjoner:</b> <ul><li>Fargeendring i <a href="/wiki/Te" title="Te">te</a> ved tilsetting av <a href="/wiki/Sitron" title="Sitron">sitron</a>.</li> <li>Sprengning med <a href="/wiki/Sprengstoff" title="Sprengstoff">sprengstoff</a>.</li> <li>Biler som drives med en <a href="/wiki/Forbrenningsmotor" title="Forbrenningsmotor">forbrenningsmotor</a>.</li> <li><a href="/wiki/Fyrverkeri" title="Fyrverkeri">Fyrverkeri</a>.</li></ul></li></ul> <ul><li><b>Langsomme reaksjoner:</b> <ul><li>Spiker som <a href="/wiki/Rust" title="Rust">ruster</a>.</li> <li><a href="/wiki/H%C3%A5r" title="Hår">Hår</a> som vokser.</li> <li><a href="/wiki/Maling" title="Maling">Maling</a> som tørker.</li> <li><a href="/wiki/Papir" title="Papir">Papir</a> som gulner.</li> <li><a href="/wiki/Lim" title="Lim">Lim</a> som herder.</li></ul></li></ul> <div class="mw-heading mw-heading2"><h2 id="Referanser">Referanser</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Kjemisk_reaksjon&veaction=edit&section=7" title="Rediger avsnitt: Referanser" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Kjemisk_reaksjon&action=edit&section=7" title="Rediger kildekoden til seksjonen Referanser"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><b><a href="#cite_ref-1">^</a></b> <span class="reference-text"><cite class="citation journal">Weyer, Jost (1973). «Neuere Interpretationsmglichkeiten der Alchemie». <i>Chemie in unserer Zeit</i>. 7 (6): 177. <a href="/wiki/Digital_objektidentifikator" title="Digital objektidentifikator">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1002%2Fciuz.19730070604">10.1002/ciuz.19730070604</a>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fno.wikipedia.org%3AKjemisk+reaksjon&rft.atitle=Neuere+Interpretationsmglichkeiten+der+Alchemie&rft.aufirst=Jost&rft.aulast=Weyer&rft.date=1973&rft.genre=article&rft.issue=6&rft.jtitle=Chemie+in+unserer+Zeit&rft.pages=177&rft.volume=7&rft_id=info%3Adoi%2F10.1002%2Fciuz.19730070604&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-2"><b><a href="#cite_ref-2">^</a></b> <span class="reference-text">Leonard J. Friedman & Samantha J. Friedman <a rel="nofollow" class="external text" href="http://www.aiche-cf.org/Clearwater/2008/Paper2/8.2.7.pdf">The History of the Contact Sulfuric Acid Process</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20120526112703/http://www.aiche-cf.org/Clearwater/2008/Paper2/8.2.7.pdf">Arkivert</a> 26. mai 2012 hos <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a>., Acid Engineering & Consulting, Inc. Boca Raton, Florida</span> </li> <li id="cite_note-3"><b><a href="#cite_ref-3">^</a></b> <span class="reference-text">John E. Lesch <a rel="nofollow" class="external text" href="http://books.google.com/books?id=VJIztvolC8cC&pg=PA170">The German chemical industry in the twentieth century</a>, Springer, 2000, <a href="/wiki/Spesial:Bokkilder/0792364872" class="internal mw-magiclink-isbn">ISBN 0-7923-6487-2</a> p. 170</span> </li> <li id="cite_note-4"><b><a href="#cite_ref-4">^</a></b> <span class="reference-text">Brock, William H. <a rel="nofollow" class="external text" href="http://books.google.com/books?id=AJ-c8py7t6gC&pg=PA459"><i>Viewegs Geschichte der Chemie</i></a> <span class="bjeller" style="color: var(--color-subtle, #54595d); cursor:help;" title="tysk">(tysk)</span> . Vieweg, Braunschweig 1997, <a href="/wiki/Spesial:Bokkilder/3540670335" class="internal mw-magiclink-isbn">ISBN 3-540-67033-5</a>, s 34-55</span> </li> <li id="cite_note-5"><b><a href="#cite_ref-5">^</a></b> <span class="reference-text">Brock, s. 104-107</span> </li> </ol></div> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r23230704">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol dl,.mw-parser-output .hlist ol ol,.mw-parser-output .hlist ol ul,.mw-parser-output .hlist ul dl,.mw-parser-output .hlist ul ol,.mw-parser-output .hlist ul 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