Chemistry polyatomic ions

Hydroxide

OH⁻¹

Ammonium

NH₄⁻¹

Acetate

C₂H₃O₂⁻¹ or CH₃COO

Chlorate

ClO₃⁻¹

Sulfate

SO₄⁻²

Nitrate

NO₃⁻¹

Phosphate

PO₄⁻³

Permanganate

MnO₄⁻¹

Carbonate

CO₃⁻²

Hypochlorite

ClO⁻¹

Chlorite

ClO₂⁻¹

Dichromate

Cr₂O₇⁻²

Chromate

CrO₄⁻²

Perchlorate

ClO₄⁻¹

Cyanide

CN⁻¹

Hydrogen Carbonate

HCO₃⁻¹

Nitrite

NO₂⁻¹

Sulfite

SO₃⁻²

Phosphite

PO₃⁻³