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Polyatomic Ions
| Term | Definition |
|---|---|
| NH4 +1 | ammonium |
| C2H3O2 -1 | acetate |
| OH-1 | hydroxide |
| NO3-1 | nitrate |
| NO2-1 | nitrite |
| HCO3-1 | bicarbonate or hydrogen carbonate |
| HSO4-1 | bisulfate |
| HSO3-1 | bisulfite |
| MnO4-1 | permanganate |
| CO3-2 | carbonate |
| C2O4-2 | oxalate |
| SO4-2 | sulfate |
| SO3-2 | sulfite |
| CrO4-2 | chromate |
| Cr2O7-2 | dichromate |
| PO4-3 | phosphate |
| PO3-3 | phosphite |
| ClO4-1 | perchlorate |
| ClO3-1 | chlorate |
| ClO2-1 | chlorite |
| ClO-1 | hypochlorite |
| BrO4-1 | perbromate |
| BrO3-1 | bromate |
| BrO2-1 | Bromite |
| BrO-1 | hypobromite |
| IO3-1 | Iodate |
| IO2-1 | Iodite |
| IO-1 | hypoiodite |