Separate this redox reaction into its component half-reactions. 3o2 4cr

The half reactions are written below.

Explanation:

Redox reaction is defined as the reaction in which oxidation and reduction reaction occur simultaneously.

Reduction reaction is defined as the reaction in which an atom gains electrons. The oxidation number of the atom gets reduced during this reaction.

Oxidation reaction is defined as the reaction in which an atom looses its electrons. The oxidation number of the atom gets increased during this reaction.

For the given chemical reaction:

Oxidation half reaction:       (×  4)

Reduction half reaction:       (×  3)

Overall reaction:  

Hence, the half reactions are given above.