Common Polyatomic Ions

Introduction to Chemistry CHEM 1305-001

Acetate

C2H3O2^-

Hydrogen carbonate (bicarbonate)

HCO3^-

NO2^-

nitrite

NO3^-

nitrate

CN^-

cyanide

OH^-

hydroxide

MnO4^-

permanganate

ClO^-

hypochlorite

ClO2-

Chlorite

ClO3-

Chlorate

ClO4-

Perchlorate

C2O4^2-

Oxalate

SO3^2-

Sulfite

SO4^2-

sulfate

CO3^2-

Carbonate

CrO4^2-

Chromate

Cr2O7^2-

Dichromate

PO3^3-

Phosphite

PO4^3-

Phosphate

NH4^+

Ammonium