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Solubility Rules
| Term | Definition |
|---|---|
| Ammonium (NH4 +) and group 1 elements | Soluble |
| Nitrates (NO3 −) | Soluble |
| Acetates (C2H3O2 -) | Soluble |
| Chlorides | Soluble except with Ag, Hg, and Pb |
| Sulfates (SO4 2-) | Soluble except with Ba, Sr, Ca, and Pb |
| Carbonates (CO3 2-) | Insoluble except with group 1 elements or ammonium |
| Phosphates (PO4 3-) | Insoluble except with group 1 elements or ammonium |
| Hydroxides (OH -) | Insoluble except with group 1 elements, ammonium, Sr, and Ba |
| Sulfides (S2 -) | Insoluble except with group 1 elements, group 2 elements, and ammonium |