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Polyatomic Ions

Polyatomic Ions to Memorize for CHM 111 and CHM 112

NameSymbol and Charge
Ammonium ion NH 4+
Hypochlorite ion ClO -
Chlorite ion ClO 2-
Chlorate ion ClO 3-
Perchlorate ion ClO 4-
Cyanide ion CN -
Acetate ion CH3CO2 -
Carbonate ion CO3 2-
Hydrogen carbonate ion HCO3 -
Oxalate ion C2O4 2-
Chromate ion CrO4 2-
Dichromate ion Cr2O7 2-
Permanganate ion MnO4 -
Nitrite ion NO2 -
Nitrate ion NO3 -
Phosphate ion PO4 3-
Hydrogen phosphate ion HPO4 2-
Hydroxide ion OH -
Sulfite ion SO3 2-
Sulfate ion SO4 2-
Hydrogen sulfate ion HSO4 -
Created by: muunsey
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