Soluble insoluble

CO_3^{2-}

Carbonate salts are insoluble (solid)

CrO_4^{2-}

Chromate salts are insoluble (solid)

O^{2-}

Oxide salts are insoluble (solid)

OH^-

Hydroxide salts are insoluble (solid)

PO_4^{3-}

Phosphate salts are insoluble (solid)

S^{2-}

Sulfide salts are insoluble (solid)

ClO_3^-

Chlorate salts are soluble (aqueous)

CH_3COO^-

Acetate salts are soluble (aqueous)

SO_4^{2-}

Sulfate salts are soluble (aqueous)

Cl^-, Br^-, I^-

Chloride, Bromide, and Iodide salts are soluble (aqueous)

NO_3^-

Nitrate salts are soluble (aqueous)

Group 1A Metals (Li^+, Na^+, K^+, Rb^+, Cs^+)

Salts containing Group 1A Metals (Lithium, Sodium, Potassium, Rubidium, Cesium) are soluble (aqueous)