Write the equations for the combustion reactions of the following substances, taking into account their valence

Write the equations for the combustion reactions of the following substances, taking into account their valence: nitrogen (V) – N₂, sulfur (II), hydrogen (H₂), phosphorus (V), manganese (VII), zinc, potassium, chromium (III)

As a result of the combustion of nitrogen, nitrogen oxide (V) is formed.

When sulfur burns, sulfur oxide (II) is formed.

When hydrogen burns in oxygen, water is formed.

Phosphorus burns to form phosphorus (V) oxide.

Manganese burns to form manganese (VII) oxide.

Zinc burns to form zinc oxide.

Potassium forms potassium oxide with oxygen.

Chromium, burning in oxygen, forms chromium (III) oxide.

2N2 + 5O2 = 2N2O5;

S + O2 = 2SO;

2H2 + O2 = 2H2O;

4 P + 5O2 = 2P2O5;

4 Mn + 7O2 = 2Mn2 O7;

2 Zn + O2 = 2ZnO;

4K + O2 = 2K2O;

4Cr + 3O2 = 2Cr2O3.