1. For galvanic cell represented by the cell diagram, determine the spontaneous half-reactions and the overall reaction. Indicate which reaction occurs at the anode and which occurs at the cathode. (10 pts) Zn(s)Zn2+(aq))H+(aq)H2(g),Pt(s) 2. Balance the following in an acidic solution. (10 pts) SO32(aq)+MnO4(aq)SO42(aq)+Mn2+(aq) 3. Balance the following in a basic solution. (10pts) Cr2O72(aq)+C2H5OH(l)Cr3+(aq)+CO2(g)