Look at sample problem 19.5 in the 8th ed Silberberg book. Write the ion-product expression at equilibrium for each compound: How to enter the correct e. g. silver sulfate (Ag2SO4) enter this: {Ag+}2{SO42-} don't enter spaces, use square brackets [] not{}or () for concentration and don't worry about subscripting or superscripting (1) magnesium carbonate
(2) calcium phosphate
(3) silver sulfide

See explanation

Explanation:

The term ion product is an expression that does not necessarily reflect equilibrium conditions which can be used to determine the concentration of ions in a solution of the stated substance. As a matter of fact, the ion product is different from the solubility product which reflects equilibrium conditions.

The ion product of the following substances are shown below;

magnesium carbonate - MgCO3

MgCO3(aq) > [Mg^2+] [CO3^2-]

calcium phosphate - Ca3(PO4)2

Ca3(PO4)2(aq) > [Ca^2+]^3  [PO4^3-]^2

silver sulfide - Ag2S

Ag2S(aq) > [Ag^+]^2  [S^2-]

a corroding iron, if that's one of your choices

bcde is the incorrect answer it is a