Question

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)

Answer 1

Answer:

C. B(s) + C2+(aq) → C(s) + B2+(aq)

Explanation:

Answer 2

Answer:

d

Explanation:

e works, a and b one of them is stronger but it works d is the only logical answer