Consider the following solubility equilibrium: Cu3(PO4)2 (s) ? 3 Cu2+ (aq) + 2 PO43? (aq) What is the correct solubility product expression, Ksp, for this equilibrium? Ksp=[Cu2+]3[PO43?] Ksp=[Cu2+][PO43?] Ksp=[Cu2+]3[PO43?]2 Ksp=[Cu2+]3[PO43?]2[Cu3(PO4)2] Ksp=[Cu2+][PO43?]2