AP Chem Test – Solubility Rules – Flashcards
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| Alkali Metals: Li+,Na+,K+,Rb+,Cs+ |
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| All salts of ALKALI METALS are SOLUBLE. |
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| Ammonium: NH4+ |
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| All salts of AMMONIUM are SOLUBLE. |
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| Nitrate: NO3- |
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| All salts of NITRATE are SOLUBLE. |
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| Chlorate: ClO3- |
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| All salts of CHLORATE are SOLUBLE. |
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| Perchlorate: ClO4- |
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| All salts of PERCHLORATE are SOLUBLE. |
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| Acetate: C2H3O2- |
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| All salts of ACETATE are SOLUBLE. |
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| Chloride, Bromide, and Iodide: Cl-, Br-, I- (Middle Halogens) |
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| All salts of CHLORIDE, BROMIDE, and IODIDE are SOLUBLE EXCEPT those containing: SILVER, LEAD AND MERCURY Ag+, Pb2+, and (Hg2)2+ |
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| Sulfate: (SO4)2- |
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| All salts of SULFATE are SOLUBLE EXCEPT those containing: SILVER, LEAD, MERCURY AND HEAVY GROUP 2A IONS Ag+, Pb2+, (Hg2)2+, Ca2+, Sr2+, and Ba2+ |
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| Hydroxide: OH- |
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| All salts of HYDROXIDE are INSOLUBLE except those containing ALKALI METALS and HEAVY GROUP 2A IONS (Ca2+, Sr2+, and Ba2+) |
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| Carbonate: (CO3)2- |
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| All salts of CARBONATE are INSOLUBLE except those containing ALKALI METALS and AMMONIUM (NH4+). |
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| Phosphate: (PO4)3- |
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| All salts of PHOSPHATE are INSOLUBLE EXCEPT those containing ALKALI METALS and AMMONIUM (NH4+). |
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| Sulfite: (SO3)2- |
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| All salts of SULFITE are INSOLUBLE except for those containing ALKALI METALS and AMMONIUM (NH4+) |
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| Chromate: (CrO4)2- |
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| All salts of CHROMATE are INSOLUBLE EXCEPT those containing ALKALI METALS and AMMONIUM (NH4+). |
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| Sulfide: S2- |
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| All salts of SULFIDE are INSOLUBLE EXCEPT those containing ALKALI METALS, AMMONIUM (NH4+), AND ALL GROUP 2A IONS. |
