Chemistry polyatomic ions

Ammonium

NH4 +

Acetate

C2H3O2 -

Carbonate

CO3 -2

Chlorate

ClO3 -

Hydrogen carbonate bicarbonate

HCO3 -

Chlorite

ClO2 -

Chromate

CrO4 -2

Hydroxide

OH-

Nitrate

NO3 -

Nitrite

NO2 -

Peroxide

O2 -2

Phosphate

PO4 -3

Phosphite

PO3 -3

Sulfate

SO 4 -2

SO3 -2