When metal a is placed in a solution of metal ions b2+, a reaction occurs between a and b2+, and metal ions a2+ appear in the solution. when metal b is placed in acid solution, gas bubbles form on its surface. when metal a is placed in a solution of metal ions c2+, no reaction occurs. which of the following reactions would not occur spontaneously?
a. c(s) + 2h+(aq) → h2(g) + c2+(aq)
b. c(s) + a2+(aq) → a(s) + c2+(aq)
c. b(s) + c2+(aq) → c(s) + b2+(aq)
d. a(s) + 2h+(aq) → h2(g) + a2+(aq)
e. b(s) + 2h+(aq) → h2(g) + b2+(aq)