2 NaHSO₃ + Br₂ → Na₂SO₄ + 2 HBr + SO₂
Explanation:
* Sodium bisulfite (NaHSO₃) acts as a reducing agent, donating electrons to bromine.
* Bromine (Br₂) acts as an oxidizing agent, accepting electrons from sodium bisulfite.
* Sodium sulfate (Na₂SO₄) is formed when the sulfur in bisulfite is oxidized to a higher oxidation state.
* Hydrobromic acid (HBr) is formed when bromine is reduced.
* Sulfur dioxide (SO₂) is also produced as a byproduct of the reaction.
Note: This reaction is usually conducted in an aqueous solution.
