Question

A piece of cadmium is placed in a solution in which [Cd^2+]=[Sn^2+]=1.00M. Will the following reaction proceed spontaneously?
Cd(s)+Sn^2+(aq)-->Cd^2+(aq)+Sn(s)

Answer 1

Look up the Eo values, add Eo oxidation + Eo reduction. If the number is + the reaction will go; if negative, the reaction will not go as written.