Question

What happens when metals react with oxygen give an equation?

Answer 1

When metals react with oxygen, specifically an oxygen atom, the process of oxidation takes place, hence it's name. ... For example when iron changes it's oxidation state by reacting with oxygen and loosing an electron - iron oxide forms which has that characteristic colour of rust.

4Na(s) + O2 (g) —>2 Na2O (s)

4K(s) + + O2 (g) —>2 K20 (s)

Answer 2

Explanation:

When a metal reacts with oxygen, a metal oxide forms.

The general equation for this reaction is: metal + oxygen → metal oxide.