Synthesis Reaction
A + B —> C
Ex) Mg + F2 —> MgF2
Decomposition Reaction
AB —> A + B
Ex) AuCl3 —> Au + Cl2
Single Replacement Reaction
A + BC —> AC + B
Ex) Al + PbCl –> AlCl + Pb
Double replacement Reaction
AB + CD —> AC + BD
Ex) NaS + HCl —> NaH + SCl