Types of Chemical Reactions pages 276-287

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The burning of any substance in oxygen to produce energy in the form of heat or light Types: • Single element burning in Oxygen - form a compound containing both elements • General Form: A + O2 ---AO • EX: 2Mg + O2 ---2MgO • Hydrocarbon burning the presence of Oxygen to form CO2 & H2O • General form: CxHy + O2 ---- CO2 + H2O • EX: C3H8 + O2 ----- CO2 + H2O

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the combination of two or more substances to form a compound- only one product formed General Form: A + B - AB EX: 2Na + Cl2 --- 2NaCl

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A single compound breaks into two or more simpler substances ~ one reactant, more than one product

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General Form: AB --- A + B

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EX:

2H2O2 --- 2H2O + O2

Single element replaces another element in a compound

• General form: A + BC -- AC + B • General form: A + BC -- C + BA • EX: Zn + 2HCl --- ZnCl2 + H2 • EX: 2NaCl + F2 -- 2NaF + Cl2

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Cations in two compounds switch places to make two new compounds Produces precipitates

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General form: AB + CD -- AD + CB

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EX: 2KI + Pb(NO3)2--- 2KNO3 + PbI2

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