CH101, Gen. Chem. 4th Edition Textbook: Common Polyatomic Ions

OH^-

hydroxide

CN^-

cyanide

SCN^-

thiocyanate

HCO₃^-

hydrogen carbonate (bicarbonate)

HSO₃^-

hydrogen sulfite (bisulfite)

HSO₄^-

hydrogen sulfate (bisulfate)

NO₂^-

nitrite

NO₃^-

nitrate

MnO₄^-

permanganate

ClO^-

hypochlorite

ClO₂^-

chlorite

ClO₃^-

chlorate

ClO₄^-

perchlorate

O₂^2-

peroxide

CO₃^2-

carbonate

SO₃^2-

sulfite

SO₄^2-

sulfate

C₂H₃O₂^- 

acetate .

CH₃COO^-

acetate

S₂O₃^2-

thiosulfate

C₂O₄^2-

oxalate

CrO₄^2-

chromate

Cr₂O₇^2-

dichromate

PO₃^3-

phosphite

PO₄^3-

phosphate

NH₄⁺

ammonium

Hg₂²⁺

mercury (I)