Make up the equations for the reactions of obtaining oxides by oxidation of simple

Make up the equations for the reactions of obtaining oxides by oxidation of simple and complex substances and by decomposition of bases P; ZnS; Fe (OH) 3.

Oxides can be obtained by the interaction of simple or complex substances with oxygen. These reactions are called oxidation reactions.
P is a simple substance phosphorus, when it is oxidized, two types of oxides can be obtained, depending on the amount of oxygen that reacts:
a) 4 P + 5 O2 = 2 P2O5;
b) 2 Р + 3 О2 = 2 Р2О3.
ZnS is zinc sulfide. When it is oxidized, 2 oxides are formed:
2 ZnS + 2 О2 = 2 ZnО + SO2.
Oxides are also formed during the decomposition of insoluble bases:
2 Fe (OH) 3 = Fe2O3 + 3 H2O.