1. N#21 Types of Chemical Reactions
Single Replacement (Displacement)
Double Replacement (Displacement)
Decomposition
Synthesis
Combustion

2. Re Single Displacement element + compound compound + element
Cl2 + 2KBr
2KCl + Br2

3. Single Displacement Cl2 + 2KBr 2KCl + Br2 Cl- The anion(in this case)
replaces

4. Re Double Displacement
compound AB + compound CD  compound AD compound CB
PbCl Li2SO 
Anions swap places
PbSO4 + 2LiCl

5. Decomposition See Pg 260 compound two or more elements or compounds
Pb(OH)2 PbO + H2O

6. Synthesis element/compound + element/compound compound
2H2(g) + O2(g) 2H2O(g)

7. Combustion hydrocarbon + oxygen carbon dioxide + water
CH4 + 2O2 CO2 + 2H2O

8. The End