A. For the slightly soluble salt BaCO3, write the equilibrium equation for disso

Question

A. For the slightly soluble salt BaCO3, write the equilibrium equation for dissociation: Express your answer as a chemical equation. Identify all of t he phases in your answer. I got Ba2+(aq) + (CO3)2-(aq) but its saying it is incorrect please help

. B. For the slightly soluble salt PbCl2, write the equilibrium equation for dissociation: Express your answer as a chemical equation. Identify all of the phases in your answer. I got Pb2+(aq) + 2Cl-(aq) but it said it was wrong. Any idea why?

C. For the slightly soluble salt AlPO4, write the equilibrium equation for dissociation: Express your answer as a chemical equation. Identify all of the phases in your answer. I got Al3+(aq) + (PO4)3-(aq) but it said it was incorrect any idea why?

Explanation / Answer

You are not including the solid in the reactants

and also try to use the two sided arrow

a.

BaCO3(s) <-> Ba+2(aq) + CO3-2(aq)

b.

PbCl2(s) <-> Pb+2(aq) + 2Cl-(aq)

c.

AlPO4(s) <-> Al+3(aq) + PO4-3(aq)

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