Each equation is incorrect. find the errors, then rewrite and balance each equation. cl2 + nai → nacl2 + i nh3 → n + h2 na + o2 → nao2

1) Balanced chemical reaction: Cl₂ + 2NaI → 2NaCl + I₂.

Chlorine and iodine are diatomic molecules.

2) Balanced chemical reaction: 2NH₃ → N₂ + 3H₂.

Nitrogen and hydrogen are diatomic molecules.

3) Balanced chemical reaction: 4Na + O₂ → 2Na₂O.

Sodium in compounds has oxidation number + 1 and oxygen - 2.