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Solubility Rules
| Ionic compounds containing | generally/unless combined with |
|---|---|
| Grp 1 cations, NH4+ | soluble |
| NO3-, ClO3-, ClO4-, CH3CO2- | soluble |
| Cl-, Br-, I- | soluble, Cu+, Ag+, Hg2 2+, Pb 2+ |
| F- | soluble, Ca2+, Sr2+, Ba 2+, Pb 2+ |
| SO4 2- | soluble, Ca2+, Sr2+, Ba 2+, Pb 2+, Hg2 2+ |
| CO3 2-, PO4 3- | insoluble, Grp 1 , NH4+ |
| S 2- | insoluble, Grp 1, NH4+, Ba 2+ |
| OH-, O 2- | insoluble, Grp 1, NH4+, Ba 2 +, Ca 2+, Sr 2 |