5 Types of Reactions

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

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

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

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