In: Chemistry
Balance this reduction-oxidation reaction. It occurs in an acidic solution. MnO2 + Br- Mn2+ + Br2
MnO2 + Br- -------------->Mn2+ + Br2
oxidation half reaction Reduction half reaction
2Br^- -------------> Br2 MnO2 --------------> Mn^2+
2Br^- -------------> Br2 MnO2 --------------> Mn^2+ + 2H2O
2Br^- -------------> Br2 MnO2 +4H^+ --------------> Mn^2+ + 2H2O
2Br^- -------------> Br2 +2e^- MnO2 +4H^+ +2e^- ----> Mn^2+ + 2H2O
2Br^- -------------> Br2 +2e^-
MnO2 +4H^+ +2e^- ----> Mn^2+ + 2H2O
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2Br^- + MnO2 + 4H^+ -------> Mn^2+ + Br2 + 2H2O