Write down the chemical reactions of oxygen interaction with metals, namely with lithium, magnesium, aluminum, iron.

Consider the reactions that take place between oxygen and various metals. In all these reactions, we get a binary compound oxide. The first reaction is the interaction of oxygen and iron. We get ferric oxide. The molecular equation of the reaction can be written as follows:

3 Fe + 2 O2 = Fe3O4

Oxygen react with lithium. We get lithium oxide.

Li + O2 = 2 Li2O

Magnesium reacts with oxygen to form magnesium oxide.

2 Mg + O2 = 2 MgO

A chemical reaction takes place between substances such as aluminum and oxygen. Formed trivalent aluminum oxide.

4 Al + 3 O2 = 2 Al2O3.