The correct interpretation of the equation below is:

Question

Fe3+(aq) + SCN–(aq) --> FeSCN2+(aq)

A. At equilibrium, the rate of the forward reaction equals the rate of the reverse reaction.
B. The equilibrium constant is Kc = [Fe3+][SCN–][FeSCN2+]
C. A heterogeneous equilibrium exists because of the charged ions.
D. The reaction is incomplete because the product is still charged.
E. None of these.

Answer 1

A is true.
B is the Kc for the reverse direction.
C is not heterogeneous (to be heterogeneous you would need different phases in the equilibrium but all of these are in the ame phase; i.e., aqueous.
D. Many reactions have charges on them.