Alcl3 + na nacl + al did na change oxidation number?

Explanation:

The given reaction equation is as follows.

To balance this equation, we multiply Na by 3 on reactant side and NaCl by 3 also.

Thus, the balanced equation is as follows.

The oxidation and reduction reaction will be as follows.

Oxidation:    

Reduction:    

Thus, we can conclude that oxidation state of sodium changes from 0 to +1.

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