1. The problem statement, all variables and given/known data One mole of aqueous S2O32- ions reduces four moles of Cl2 molecules. What is the oxidation state of the sulphur containing product of this reaction? 2. Relevant equations 3. The attempt at a solution oxidation state in S2O32- = +2 since 4moles of Cl2 are reduced, 8 electrons are released by S2O32- ions. these are all information i can get, but i have no ideas how to proceed, please help me..