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-]

the correct option is c.

isotopes refers to different forms of the same element with the same atomic number but different mass number as a result of difference in their neutron numbers. isotopes have different relative atomic mass but share the same chemical properties.

the electron configuration that you gave me has 16 electrons ergo it has 16 protons ergo it is the element sulfur.