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Polyatomic Ions
How many polyatomic ions do you remember?
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| A | B |
| Ammonium ion | NH4(+) |
| Hydronium ion | H3O(+) |
| Hydroxide ion | OH(-) |
| Cyanide ion | CN(-) |
| Nitrate ion | NO3(-) |
| Nitrite ion | NO2(-) |
| Perchlorate ion | ClO4(-) |
| Chlorate ion | ClO3(-) |
| Chlorite ion | ClO2(-) |
| Hypochlorite ion | ClO(-) |
| Permanganate ion | MnO4(-) |
| Bicarbonate (hydrogen carbonate) ion | HCO3(-) |
| Bisulfate (hydrogen sulfate) ion | HSO4(-) |
| Bisulfite (hydrogen sulfite) ion | HSO3(-) |
| Acetate ion | C2H3O2(-) |
| Thiocyanate ion | SCN(-) |
| Iodate ion | IO3(-) |
| Sulfate ion | SO4(-2) |
| Sulfite ion | SO3(-2) |
| Carbonate ion | CO3(-2) |
| Dichromate ion | Cr2O7(-2) |
| Chromate ion | CrO4(-2) |
| Oxalate ion | C2O4(-2) |
| Thiosulfate ion | S2O3(-2) |
| Phosphate ion | PO4(-3) |
| Arsenate ion | AsO4(-3) |
| Arsenite ion | AsO3(-3) |
| Ferricyanide ion | Fe(CN)6 (-3) |
| Borate ion | BO3(-3) |
| Ferrocyanide ion | Fe(CN)6 (-4) |
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