chem hn: polyatomic ions

Nitrate

NO₃^1-  

Nitrite

NO₂^1-

Sulfate

SO₄^2-

Sulfite

SO₃^2-

Perchlorate

ClO₄^1-

Chlorate

ClO₃^1-

Chlorite

ClO₂^1-

Hypochlorite

ClO^1-

Bicarbonate (hydrogen carbonate)

HCO₃^1-   

Carbonate

CO₃^2-

Phosphate

PO₄^3-

Phosphite

PO₃^3-

Hydroxide

OH^1-

Peroxide

O₂^2-  

Cyanide

CN^1-  

Acetate

C₂H₃O₂^1- (CH₃COO^1-)

Ammonium 

NH₄¹⁺