Write equations for the dissociation of the following in water. Include physical states for all species.

CaCl2

and

(NH4)2SO4

CaCl2 + H2O ==> Ca^2+(aq) + 2Cl^-(aq)

(NH4)2SO4 is similar.

To write the equations for the dissociation of CaCl2 and (NH4)2SO4 in water, we need to know that both these compounds are ionic compounds. When ionic compounds dissolve in water, they dissociate into their constituent ions.

1. CaCl2 dissociates as follows:
CaCl2 (s) → Ca2+ (aq) + 2Cl- (aq)

In this equation, CaCl2 (s) represents the solid state of calcium chloride, and Ca2+ (aq) and 2Cl- (aq) represent the calcium ions and chloride ions in the aqueous (dissolved) state.

2. (NH4)2SO4 dissociates as follows:
(NH4)2SO4 (s) → 2NH4+ (aq) + SO4^2- (aq)

Similarly, (NH4)2SO4 (s) represents the solid state of ammonium sulfate, and 2NH4+ (aq) and SO4^2- (aq) represent the ammonium ions and sulfate ions in the aqueous (dissolved) state.

Remember, the (aq) symbol is used to represent the aqueous state in which the ions are dissolved in water.

So, the equations for the dissociation of CaCl2 and (NH4)2SO4 in water with physical states included are:

1. CaCl2 (s) → Ca2+ (aq) + 2Cl- (aq)

2. (NH4)2SO4 (s) → 2NH4+ (aq) + SO4^2- (aq)