I have a two part question here and I\'m stuck because I\'ve never come across s

Question

I have a two part question here and I'm stuck because I've never come across sodium metabisulfite before. Any help/explanation with a solution to these two parts is greatly appreciated.

1)Sodium metabisulfite, Na2S2O5, is a common reducing agent that dissolves in water to form bisulfite ions. Which of the compounds listed below is/are possible products when sodium metabisulfite acts as a reducing agent?

a) Choices: Na2SO4, SO2, Na2S, S8, Na2S4O6

b) Write a balanced net ionic equation to illustrate the oxidation half-reaction when metabisulfite functions as a reducing agent in solution.

Explanation / Answer

SO2

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