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Polyatomic Ions
| formula | name |
|---|---|
| OH⁻ | hydroxide |
| NH₄⁺ | ammonium |
| NO₃⁻ | nitrate |
| NO₂⁻ | nitrite |
| C1O₄⁻ | perchlorate |
| C1O₃⁻ | chlorate |
| C1O₂⁻ | chlorite |
| C1O⁻ | hypochlorite |
| CO₃²⁻ | carbonate |
| HCO₃⁻ | hydrogen carbonate |
| CN⁻ | cyanide |
| C₂H₃O₂⁻ | acetate |
| SO₄²⁻ | sulfate |
| HSO₄⁻ | hydrogen sulfate |
| SO₃²⁻ | sulfite |
| HSO₃⁻ | hydrogen sulfite |
| PO₄³⁻ | phosphate |
| HPO₄²⁻ | hydrogen phosphate |
| H₂PO₄⁻ | dihydrogen phosphate |
| PO₃³⁻ | phosphite |