What reaction occurs at the cathode of a galvanic cell that has the following: an aluminum electrode in an electrolyte with aluminum ions and a zinc electrode in an electrolyte with zinc ions? the reduction potential for the reduction of al3+ = "-1.68" v. the reduction potential for the reduction of zn2+= "-0.76" v
a. al(s) -->al3(aq) + 3e-
b. zn(s) --> zn2(aq) + 2e-
c. zn2(aq) + 2e --> zn(s)
d. al3(aq) + 3e --> al(s)