Question

Write the expression for K of the reaction below. Mg_3^(PO4)₂ (s) <-- --> 3Mg²⁺ (aq) + 2 PO_4^3- (aq)

a. K= [Mg²⁺][PO₄^3-]

b. K= [3 Mg²⁺][2 PO₄^3-]

c. K=[Mg^2+]3[PO₄^3-]²

d. K= [Mg₃][PO₄] /[Mg^2+]][PO₄^3-]²

e. K=[Mg_{^2+]][PO4^3-]²}/ [Mg₃][PO₄]