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Polyatomic Ions
| Term | Definition |
|---|---|
| NH4(+) | Ammonium |
| NH3 | Ammonia |
| H3O(+) | Hydronium |
| CN(-) | Cyanide |
| O2(2-) | Peroxide |
| OH(-) | Hydroxide |
| SCN(-) | Thiocyanate |
| CH3CO2(-) | Acetate |
| MnO4(-) | Permanganate |
| C2O4(2-) | Oxalate |
| SO3(2-) | Sulfite |
| SO4(2-) | Sulfate |
| HSO4(-) | Bisulfate Hydrogen Sulfate |
| CO3(2-) | Carbonate |
| HCO3(-) | Bicarbonate Hydrogen Carbonate |
| CrO4(2-) | Chromate |
| Cr2O7(2-) | Dichromate |
| PO4(3-) | Phosphate |
| HPO4(2-) | Hydrogen Phosphate |
| H2PO4(2-) | Dihydrogen Phosphate |
| ClO(-) | Hypochlorite |
| ClO2(-) | Chlorite |
| ClO3(-) | Chlorate |
| ClO4(-) | Perchlorate |
| NO2(-) | Nitrite |
| NO3(-) | Nitrate |