Suppose the galvanic cell sketched below is powered by the following reaction: Mn(s)+NiSO4(aq) + MnSO4(aq)+Ni(s) E1 E2 S1 S2 ロ→ロ Write a balanced equation for the half-reaction that happens at the cathode of this cell. Write a balanced equation for the half-reaction that happens at the anode of this cell. DO. Of what substance is El made? Х 5 ? Of what substance is E2 made? What are the chemical species in solution Sl? What are the chemical species in solution S2?