1. 5 Types of Reactions

2. Combination/Synthesis Rxns.
A + B  AB
H2 + O2 
Be + O2 
 Mg3N2

3. Types of Synthesis Reactions
Metal + Oxygen  metal oxide
Nonmetal + Oxygen  nonmetallic oxide
Metal oxide + water  metallic hydroxide
Nonmetallic oxide + water  acid
Metal + nonmetal  salt

4. Decomposition Reactions
AB  A + B
Most require energy in the form of heat, light, electricity
H2O(l)  H2(g) + O2(g)

5. Decomposition Reactions
Metallic carbonates form metallic oxides and CO2(g)
Metallic hydroxides decompose into metallic oxides and water
Metallic chlorates decompose into metallic chloride and oxygen
Some acids decompose into nonmetallic oxides and water