In the following reaction - H2O + SO3 2- + 2Fe3+ âžž SO4 2- + 2Fe2+ + 2H+ the oxidation numbers for S and Fe before and after the reaction - respectively - go from

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In the following reaction - H2O + SO3 2- + 2Fe3+ âžž SO4 2- + 2Fe2+ + 2H+ the oxidation numbers for S and Fe before and after the reaction - respectively - go from