1.A
compound is probably soluble if it contains one of the following cations:
•Group 1A cation: Li1+, Na1+, K1+, Cs1+
•Ammonium ion: NH41+
•
2.A
compound is probably soluble if it contains one of the following anions:
•Halide: Cl1-, Br1-, I1-
•except Ag1+, Hg22+, and Pb2+ compounds
•Nitrate (NO31-),
perchlorate (ClO41-), acetate (CH3CO21-), sulfate (SO42-)
•except Ba2+, Hg22+, and Pb2+ sulfates