Suppose the galvanic cell sketched below is powered by the following reaction: Ni(s)+CuCl2(aq) - NiCl2(aq)+Cu(s) e- E1 E2 S1 S2 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. lo Of what substance is Ei made? Х 5 ? Of what substance is E2 made? What are the chemical species in solution S1? What are the chemical species in solution S2?