net cell vоltаge = (reductiоn pоtentiаl reаction at cathode) - (reduction potential reaction at anode) Q = I x t = n x F mass = moles x molar mass F = 96485 C/mol e- surface area = length x width volume = length x width x depth density = mass/volume Balance the two reactions below. Reaction a) is in an acidic solution, Reaction b) is in a basic solution. a) N2H4 + Cu(OH)2 --> N2 + Cu b) Cr2O72- + I2 --> Cr3+ + IO3-