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Polyatomic Ions
| Name | Formula |
|---|---|
| dihydrogen phospate | H₂PO₄⁻ |
| hydrogen phosphate | HPO₄²⁻ |
| hydroxide | OH⁻ |
| permanganate | MnO₄⁻ |
| hypochlorite | ClO⁻ |
| chlorite | ClO₂⁻ |
| chlorate | ClO₃⁻ |
| perchlorate | ClO₄⁻ |
| cyanide | CN⁻ |
| sulfite | SO₃²⁻ |
| sulfate | SO₄²⁻ |
| oxalate | C₂O₄²⁻ |
| chromate | CrO₄²⁻ |
| dichromate | Cr₂O₇²⁻ |
| hydrogen carbonate | HCO₃⁻ |
| nitrite | NO₂⁻ |
| nitrate | NO₃⁻ |
| hydrogen sulfate | HSO₄⁻ |
| ammonium | NH₄⁺ |
| phosphate | PO₄³⁻ |
| phosphite | PO₃³⁻ |
| hydrogen sulfite | HSO₃⁻ |
| silicate | SiO₃²⁻ |
| acetate | C₂H₃O₂⁻ |
| carbonate | CO₃²⁻ |