Polyatomic Ions

Dihydrogen Phosphate 
H2PO4
Acetate
C2H3O2
Hydrogen Sulfite
HSO3-
Hydrogen Sulfate
HSO4
Hydrogen Carbonate 
HCO3
Nitrite
NO2
Nitrate
NO3
Cyanide
CN
Hydroxide
OH
Permaganate
MgO4
Hypochlorite
ClO
Chlorite
ClO2
Chlorate
ClO3
Perchlorate
ClO4
Hydrogen Phosphate
HPO42-
Oxalate
C2O42-
Sulfite
SO32-
Sulfate
SO42-
Carbonate
CO32-
Chromate
CrO42-
Dichromate
Cr2O72-
Silicate
SiO32-
Phosphite
PO33-
Phosphate
PO43-
Ammonium 
NH4+
x

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