HC Polyatomc Ions

Blue: Set 1 ----------Red: Set 2------------Purple: Set 3

Acetate

C₂H₃O₂^-

Ammonium

NH₄⁺

Cyanide

CN^-

Hydroxide

OH^-

Permanganate

MnO₄^-

Thiocyanate

SCN^-

Chromate

CrO₄^2-

Dichromate

Cr₂O₇^2-

Oxalate

C₂O₄^2-

Peroxide

O₂^2-

Citrate

C₆H₅O₇³⁻

Bromate

BrO₃^-

Chlorate

ClO₂^-

Iodate

IO₃^-

Nitrate

NO₃^-

Carbonate

CO₃^2-

Selenate

SeO₄^2-

Silicate

SiO₃^2-

Sulfate

SO₄^2-

Arsenate

AsO₄^3-

Borate

BO₃^3-

Phosphate

PO₄^3-