Chemistry: Molecular Approach (4th Edition)

a) Molecules containing $S^{2-}$ are usually insoluble. b) Molecules containing $PO_4^{3-}$ are usually insoluble. c) Molecules containing $CO_3^{2-}$ are usually insoluble but $Li_2CO_3$ is an exception. d) Molecules containing $Cl^-$ are usually soluble.