1
Substance + oxygen
Oxides
2
Metal + water
Metal hydroxide + hydrogen
3
Metal + acid
Salt + hydrogen
4
Oxide + acid
Salt + water
5
Hydroxide + acid
Salt + water
6
Carbonate + acid
Salt + water + carbon dioxide
7
Ammonia + acid
Ammonium salt
8
Metal carbonate
Metal oxide + carbon dioxide (on heating)
9
Hydrogencarbonate + acid
Salt + water + carbon dioxide