Polyatomic Ions

Phosphite

PO3 3-

phosphate

PO4 3-

sulfite

SO3 2-

sulfate

SO4 2-

ammonium

NH4 +

nitrite

NO2 -

nitrate

NO3 -

hydroxide

OH-

acetate

C2H3O2 -

cyanide

CN-

carbonate

CO3 2-

hypochlorite

ClO -

chlorite

ClO2 -

chlorate

ClO3 -

perchlorate

ClO4 -

Dichromate

Cr2O7 2-

Chromate

CrO4 2-

Hydrogen carbonate

HCO3 -

permanganate

MnO4 -