What Is The Chemical Equation For The Reaction Between Sodium Metabisulfite And Water?

The chemical equation for the reaction between sodium metabisulfite and water can be written as follows:

Na2S2O5 + H2O → 2NaHSO3

In this equation, sodium metabisulfite (Na2S2O5) reacts with water (H2O) to form sodium bisulfite (NaHSO3). The reaction is a decomposition reaction in which the sodium metabisulfite breaks down into its component parts in the presence of water.