Types of Chemical Reactions Synthesis Decomposition Single-Replacement Double Replacement Combustion

Synthesis Two or more Reactants combine to form one Product H2 + O2 --> H2O

Decomposition One Reactant Breaks Down into multiple Products H2O2 --> H2O + O2

Single-Replacement A metal (or H) in an ionic compound is replaced by an unbonded metal (or H2) CuCl2+Fe -->FeCl2 + Cu Mg + HCl  H2 + MgCl2

Single-Replacement An unbonded halogen replaces a halogen in a compound F2 + NaCl  Cl2 + NaF

Double-Replacement • Two different metals (or H or NH4) in separate ionic compounds trade places •AgNO3 + K2CrO4 --> KNO3 + Ag2CrO4

Combustion! A compound (CxHy) reacts with Oxygen, forming carbon dioxide and water C3H8 + O2 --> CO2 + H2O