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General Chemistry Online: FAQ: Chemical change

<HEAD><TITLE>General Chemistry Online: FAQ: Chemical change</TITLE><META http-equiv="PICS-Label" content='(PICS-1.1 "http://www.classify.org/safesurf/" l gen true for "http://antoine.frostburg.edu/chem/senese/101/" r (SS~~000 1))'><META NAME="COPYRIGHT" CONTENT="F. Senese, Copyright 1997-2010. All rights reserved."><META NAME="GENERATOR" CONTENT="Fred Senese, Frostburg State University Department of Chemistry, senese@antoine.frostburg.edu"><META NAME="DESCRIPTION" CONTENT="A searchable database of frequently asked questions from the Chemical change section of General Chemistry Online."><META NAME="KEYWORDS" CONTENT="Chemical change, general chemistry, chemistry resources, chemistry faqs, senese, frostburg state university, FAQ, frequently asked questions"> <STYLE TYPE="text/css"> A:link, A:visited, A:active { text-decoration: none;} P, TD {font-family:arial,helvetica,verdana,sans-serif;font-size:10pt;} --> </STYLE><SCRIPT LANGUAGE="JavaScript" SRC="/chem/senese/101/global.js"></SCRIPT></HEAD><BODY bgcolor="#ffffff" TEXT="#000000" LINK="#23238e" VLINK="#23008e" ALINK="#cc3299" BACKGROUND="/chem/senese/101/images/bg.gif"><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1"><TABLE BORDER=0 CELLSPACING=0 CELLPADDING=0 WIDTH=800><TR VALIGN=TOP><TD WIDTH="130" ALIGN=LEFT><A HREF="/chem/senese/101/index.shtml"><IMG SRC="/chem/senese/101/images/gcoblue.gif" WIDTH="147" HEIGHT="52" BORDER="0" ALT="Home"><A><BR><IMG SRC="/chem/senese/images/dot.gif" HEIGHT="1" WIDTH="1" ALT="" HSPACE="0" VSPACE="10" BORDER="0"><BR><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1"><B><A HREF="/chem/senese/101/index.shtml">Home</A></B></FONT><BR><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1"><A HREF="/chem/senese/101/compounds/library.shtml">Common Compounds</A></FONT><BR><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1"><A HREF="/chem/senese/101/exam.shtml">Exam Guide</A></FONT><BR><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1">FAQ</FONT><BR><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1"><A HREF="/chem/senese/101/features.shtml">Features</A></FONT><BR><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1"><A HREF="/chem/senese/101/glossary.shtml">Glossary</A></FONT><BR><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1"><A HREF="/chem/senese/101/kits.shtml">Construction Kits</A></FONT><BR><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1"><A HREF="/chem/senese/101/notes.shtml">Companion Notes</A></FONT><BR><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1"><A HREF="/chem/senese/101/just-ask-antoine.shtml">Just Ask Antoine!</A></FONT><BR><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1"><A HREF="/chem/senese/101/simulations.shtml">Simulations</A></FONT><BR><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1"><A HREF="/chem/senese/101/slides.shtml">Slide Index</A></FONT><BR><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1"><A HREF="/chem/senese/101/toolbox.shtml">Toolbox</A></FONT><BR><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1"><A HREF="/chem/senese/101/tutorials/index.shtml">Tutorial Index</A></FONT><BR><script> (function() { var cx = '007502864726579336646:_k-snf0x-pc'; var gcse = document.createElement('script'); gcse.type = 'text/javascript'; gcse.async = true; gcse.src = (document.location.protocol == 'https:' ? 'https:' : 'http:') + '//cse.google.com/cse.js?cx=' + cx; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(gcse, s); })(); </script> <gcse:searchbox-only></gcse:searchbox-only><P></P><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1"><B><A HREF="/chem/senese/101/faq.shtml">FAQ</A></B></FONT><BR> <A HREF="/chem/senese/101/intro/faq.shtml"><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1">Introduction</FONT></A><BR><A HREF="/chem/senese/101/measurement/faq.shtml"><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1">Measurement</FONT></A><BR><A HREF="/chem/senese/101/matter/faq.shtml"><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1">Matter</FONT></A><BR><A HREF="/chem/senese/101/atoms/faq.shtml"><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1">Atoms & ions</FONT></A><BR><A HREF="/chem/senese/101/compounds/faq.shtml"><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1">Compounds</FONT></A><BR> <TABLE BORDER=0 CELLSPACING=0 CELLPADDING=0 ><TR><TD BGCOLOR="#9999bb" ALIGN=LEFT><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1" COLOR=""> Chemical change </FONT></TD></TR> </TABLE> <A HREF="/chem/senese/101/moles/faq.shtml"><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1">The mole</FONT></A><BR><A HREF="/chem/senese/101/gases/faq.shtml"><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1">Gases</FONT></A><BR><A HREF="/chem/senese/101/thermo/faq.shtml"><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1">Energy & change</FONT></A><BR><A HREF="/chem/senese/101/quantum/faq.shtml"><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1">The quantum theory</FONT></A><BR><A HREF="/chem/senese/101/electrons/faq.shtml"><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1">Electrons in atoms</FONT></A><BR><A HREF="/chem/senese/101/periodic/faq.shtml"><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1">The periodic table</FONT></A><BR><A HREF="/chem/senese/101/bonds/faq.shtml"><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1">Chemical bonds</FONT></A><BR><A HREF="/chem/senese/101/solids/faq.shtml"><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1">Solids</FONT></A><BR><A HREF="/chem/senese/101/liquids/faq.shtml"><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1">Liquids</FONT></A><BR><A HREF="/chem/senese/101/solutions/faq.shtml"><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1">Solutions</FONT></A><BR><A HREF="/chem/senese/101/acidbase/faq.shtml"><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1">Acids & bases</FONT></A><BR><A HREF="/chem/senese/101/redox/faq.shtml"><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1">Redox reactions</FONT></A><BR><A HREF="/chem/senese/101/kinetics/faq.shtml"><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1">Reaction rates</FONT></A><BR><A HREF="/chem/senese/101/organic/faq.shtml"><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1">Organic chemistry</FONT></A><BR><A HREF="/chem/senese/101/consumer/faq.shtml"><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1">Everyday chemistry</FONT></A><BR><A HREF="/chem/senese/101/inorganic/faq.shtml"><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1">Inorganic chemistry</FONT></A><BR><A HREF="/chem/senese/101/environmental/faq.shtml"><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1">Environmental chemistry</FONT></A><BR><A HREF="/chem/senese/101/safety/faq.shtml"><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1">Laboratory</FONT></A><BR><A HREF="/chem/senese/101/history/faq.shtml"><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1">History of chemistry</FONT></A><BR><A HREF="/chem/senese/101/misc/faq.shtml"><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1">Miscellaneous</FONT></A><BR><P></P></FONT><BR></TD><TD><IMG SRC="/chem/senese/images/dot.gif" HEIGHT="1" WIDTH="1" ALT="" HSPACE="25" VSPACE="0" BORDER="0"></TD><TD><FONT SIZE="-1" COLOR="#333333" FACE="geneva,Helvetica,Arial,sans-serif"><A HREF="/chem/senese/101/index.shtml">Home</A>&nbsp;<IMG SRC="/chem/senese/images/pointright.gif" ALT=":" HSPACE="3"><A HREF="/chem/senese/101/faq.shtml">FAQ</A></FONT></FONT><A NAME="Chemical%20change:%3cBR%3eFrequently%20asked%20questions"></A><H1><FONT FACE="" COLOR="#000000">Chemical change:<BR>Frequently asked questions</FONT></H1><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-1"> <!-- END HEADER --> <A NAME="acids and bases"></A><H3>Acids and bases</H3><UL><LI><A HREF="faq/hydronium.shtml">Why is H<SUP>+</SUP> sometimes written as H<SUB>3</SUB>O<SUP>+</SUP> in equations? </A> <LI><A HREF="faq/strong-and-weak.shtml">Can you classify acids as strong or weak from their formulas alone? </A> </UL><A NAME="chemical equations"></A><H3>Chemical equations</H3><UL><LI><A HREF="faq/balancing-requirements.shtml">How can I tell if an equation is balanced correctly? </A> <LI><A HREF="faq/examples-of-catalysts.shtml">What are some examples of reactions that involve catalysts? </A> </UL><A NAME="combustion reactions"></A><H3>Combustion reactions</H3><UL><LI><A HREF="faq/combustion-si2h6.shtml">How do I balance the equation for combustion of Si<SUB>2</SUB>H<SUB>6</SUB>? </A> <LI><A HREF="faq/equation-octane-combustion.shtml">What is the balanced equation for combustion of octane? </A> <LI><A HREF="faq/is-oxygen-flammable.shtml">Is oxygen flammable? </A> </UL><A NAME="double displacement reactions"></A><H3>Double displacement reactions</H3><UL><LI><A HREF="faq/balancing-naoh-hcl.shtml">How do I complete and balance an equation for reaction of NaOH with HCl? </A> <LI><A HREF="faq/classify-vinegar-bakingsoda.shtml">How should the reaction between vinegar and baking soda be classified? </A> <LI><A HREF="faq/ionic-equation-h2c2o4-pbno32.shtml">How do I write a net ionic equation for an aqueous double displacement reaction? </A> <LI><A HREF="faq/predicting-products-nicl2-nh42s.shtml">How do I predict products given only the formulas of the reactants? </A> </UL><A NAME="electrolytes"></A><H3>Electrolytes</H3><UL><LI><A HREF="faq/are-nonelectrolytes-nonpolar.shtml">Are nonelectrolytes always nonpolar? </A> </UL><A NAME="redox reactions"></A><H3>Redox reactions</H3><UL><LI><A HREF="faq/recognizing-redox-reactions.shtml">How can I recognize redox reactions? </A> </UL><A NAME="solubility rules"></A><H3>Solubility rules</H3><UL><LI><A HREF="faq/chloride-solubility-rule.shtml">What are everyday applications for the chloride solubility rule? </A> </UL></FONT></TD></TR><TR VALIGN="TOP"><TD><FONT FACE="geneva,Helvetica,Arial,sans-serif" SIZE="-2"></TD><TD></TD><TD><br clear="all"><P><A NAME="bottom"></A><HR NOSHADE><FONT SIZE="-2" FACE="geneva,Helvetica,Arial,sans-serif"><A HREF="/chem/senese/101/index.shtml">General Chemistry Online!</A> Chemical change:<BR>Frequently asked questions<P>Copyright &copy 1997-2010 by <A HREF="/chem/senese/index.shtml">Fred Senese</A><BR>Comments & questions to <A HREF="mailto:fsenese@frostburg.edu">fsenese@frostburg.edu</A><BR>Last Revised 02/23/18.URL: <A HREF="/chem/senese/101/reactions/faq.shtml" TARGET="_TOP">http://antoine.frostburg.edu/chem/senese/101/reactions/faq.shtml</A><BR></TD></TR></TABLE></BODY></HTML>

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