Polyatomic ions

C₂H₃O₂^-

acetate

CO_3^2-

Carbonate

HCO₃^-

Bicarbonate

OH^-

hydroxide

NO₂^-

nitrite

NO₃^-

nitrate

CrO₄^2-

chromate

Cr₂O₇^2-

dichromate

PO₄^3-

Phosphate

HPO₄^2-

hydrogen phosphate

H₂PO₄^-

Dihydrogen phosphate

ClO^-

Hypochlorite

ClO₂^-

chlorite

ClO₃^-

Chlorate

ClO₄^-

perchlorate

MnO₄^-

permanganate

SO₃^2-

sulfite

HSO₃^-

Hydrogen sulfite

SO₄^2-

sulfate

HSO₃^-

Hydrogen sulfite

SO₃^2-

sulfite

HSO₄^-

Hydrogen sulfate

CN^-

cyanide

O₂^2-

peroxide

NH₄⁺

ammonium