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Types of reactions. January 8, 2014. Chemical Reaction. the process by which one or more substances are changed into one or more different substances. *Only Write if you don’t have this from previous notes* REACTANTS the starting substances in a chemical reaction (the stuff on the left).
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Types of reactions January 8, 2014
Chemical Reaction the process by which one or more substances are changed into one or more different substances
*Only Write if you don’t have this from previous notes*REACTANTSthe starting substances in a chemical reaction(the stuff on the left)
*Only write if you don’t have this from previous notes*PRODUCTSthe final substances in a chemical reaction(the stuff on the right)
General Formula for Reactions A + B CReactants yields Products
SYNTHESIS two or more substances combine to form one new substance A + B AB Na + Cl2 NaCl Pb2O4 Pb(IV) + O2
when a substance breaks up into simpler substances DECOMPOSITION AB A + B NaCl Na + Cl2 Pb2O4 Pb+ O2
SINGLE DISPLACEMENT one element displaces another in a compound AB + C AC + B or CB + A NaBr + Cl2 NaCl + Br2 (NH4)2O + S (NH4)2S + O2
DOUBLE DISPLACEMENT the positive or negative portions of two compounds are switched AB + CD AD + CB NaBr + Pb2S3 Na2S + PbBr3 K2SO4 + Ba(OH)2 KOH + BaSO4
COMBUSTION hydrocarbon reacts with oxygen to form carbon dioxide and waterCH4 + O2 CO2 + H2OYou will always end up with CO2