Question & Answer: Complete and Balance the following half-reactions (steps2-5 in half reaction method): MnO4−…..

Complete and Balance the following half-reactions (steps2-5 in half reaction method): MnO4−(aq) ⟶ Mn2+(aq) (in acidic solution)

Expert Answer

Follow the steps as:

MnO4- ———> Mn2+

MnO4- ———> Mn2+ + 4H2O (balance oxygen)

MnO4- + 8H+ ———> Mn2+ + 4H2O (balance H)

MnO4- + 8H+ + 5e- ———> Mn2+ + 4H2O (balance charge) this gives balanced equation.

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