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Polyatomic Ions
Basic, common polyatomic ions for review
| formula | name |
|---|---|
| Nitrate | NO3- |
| Nitrite | NO2- |
| Chromate | CrO4^-2 |
| Dichromate | Cr2O7^-2 |
| Cyanide | CN- |
| Permanganate | MnO4- |
| Hydroxide | OH- |
| Peroxide | O2^-2 |
| Amide | NH2- |
| Carbonate | CO3^-2 |
| Sulfate | SO4^-2 |
| Sulfite | SO3^-2 |
| Oxalate | C2O4^-2 |
| Phosphate | PO4^-3 |
| Phosphite | PO3^-3 |
| Selenate | SeO4^-2 |
| Silicate | SiO3^-2 |
| Tartrate | C4H4O6^-2 |
| Hexafluorosilicate | SiF6^-2 |
| Acetate | C2H3O2- |
| Ammonium | NH4+ |
| ClO4- | Perchlorate |
| ClO3- | Chlorate |
| ClO2- | Chlorite |
| ClO- | Hypochlorite |
| IO4- | Periodate |
| IO3- | Iodate |
| IO2- | Iodite |
| IO- | Hypoiodite |
| AsO4^-3 | Arsenate |
| HCO3- | Hydrogen Carbonate (Bicarbonate) |
| HSO4- | Hydrogen Sulfate (Bisulfate) |
| HSO3- | Hydrogen Sulfite (Bisulfite) |
| HC2O4- | Hydrogen Oxalate (Binoxalate) |
| HPO4^-2 | Hydrogen Phosphate (Biphosphate) |
| H2PO4- | Dihydrogen Phosphate |
| HS- | Hydrogen Sulfide (Bisulfide) |
| BO3^-3 | Borate |
| B4O7^-2 | Tetraborate |
| S2O3^-2 | Thiosulfate |
| Azide | N3- |