Metals react with oxygen in the air to produce metal oxides, while nonmetals react with oxygen in the air to produce nonmetal oxides. Ex (metal reaction) : Mg + O2 → 2MgO. Ex (nonmetal reaction) →N2 + 2O2 → 2NO2. read more
Combustion is an example of a type of reaction called oxidation. In an oxidation reaction, a substance gains oxygen. Metals and non-metals can take part in oxidation reactions. read more