Polyatomic Ions (CH 101)

Acetate

C₂H₃O₂^-

Carbonate

CO₃^2-

Hydrogen carbonate (bicarbonate)

HCO₃^-

Hydroxide

OH^-

Nitrite

NO₂^-

Nitrate

NO₃^-

Chromate

CrO₄^2-

Dichromate

Cr₂O₇^2-

Phosphate

PO₄^3-

Hydrogen phosphate

HPO₄^2-

Dihydrogen phosphate

H₂PO₄^-

Ammonium

NH₄⁺

Hypochlorite

ClO^-

Chlorite

ClO₂^-

Chlorate

ClO₃^-

Perchlorate

ClO₄^-

Permanganate

MnO₄^-

Sulfite

SO₃^2-

Hydrogen sulfite (bisulfite)

HSO₃^-

Sulfate

SO₄^2-

Hydrogen sulfate (bisulfate)

HSO₄^-

Cyanide

CN^-

Peroxide

O₂^2-