SYNTHESIS
A+B= AB
2H2 + O2 = 2H2O
DECOMPOSITION
AB –> A + B
2Ni2O3 –> 4Ni 3O2
SINGLE REPLACEMENT REACTIONS
A+BC –> AC+B
Mg+CuSO4 –> Cu + MgSO4
DOUBLE REPLACMENT REACTIONS
AB + CD –> AC+BD
Na2S + HCl –> NaCl + H2S