Write the half reactions and the balanced equation for the galvanic cell

Question

Hg(ℓ)|Hg2+2(aq)||MnO4(aq),Mn2+(aq),H+(aq)|Pt(s). What is the smallest possible integer coefficient of H2O(ℓ) in the combined balanced equation?

Answer 1

It would help if you included the potentials from the problem (or from your text/notes) so we use the same set of numbers.

Answer 2

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