Problem: Identify the oxidation and reduction steps in the following reaction:4Fe +3O2 → 2Fe2O3A.  Oxidize: O2 → 2 O2− + 2 e−                  Reduced: Fe → Fe  3+ + 3 e−B.  Oxidize: Fe → Fe2+ + 2 e−                    Reduced: O2 → 2 O2− + 4 e−C.  Oxidize: Fe → Fe3+ + 3 e−                    Reduced: 4 e− + O2 → 2 O2− D.  Oxidize: Fe → Fe3+ + 3 e−                      Reduced: O2 → 2 O2− + 4 e−E.  Oxidize: O2 → 2 O2− + 4 e−                  Reduced: Fe → Fe3+ + 3 e− 

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Problem Details

Identify the oxidation and reduction steps in the following reaction:

4Fe +3O2 → 2Fe2O3

A.  Oxidize: O2 → 2 O2 + 2 e                  Reduced: Fe → Fe  3+ + 3 e

B.  Oxidize: Fe → Fe2+ + 2 e                    Reduced: O2 → 2 O2 + 4 e

C.  Oxidize: Fe → Fe3+ + 3 e                    Reduced: 4 e + O2 → 2 O2 

D.  Oxidize: Fe → Fe3+ + 3 e−                      Reduced: O2 → 2 O2− + 4 e

E.  Oxidize: O2 → 2 O2 + 4 e                  Reduced: Fe → Fe3+ + 3 e

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