Polyatomic Ions

Acetate

CH3COO- (C2H3O2-)

Chlorate

ClO3-

Chlorite

ClO2-

Bicarbonate

HCO3-

Hydroxiode

OH-

Hypochlorate

ClO-

Nitrate

NO3-

Nitrite

NO2-

Perchlorate

ClO4-

Carbonate

CO3^2-

Chromate

CrO4^2-

Dichromate

Cr2O7^2-

Oxalate

C2O4²-

Sulfate

SO4^ 2-

Sulfite

SO3^ 2-

Phosphate

PO4^ 3-

Ammonium

NH4+

Permanganate

MnO4-