Polyatomic Ions and Common Compounds

ammonium

ammonium

NH₄⁺

hydronium ion

H₃O⁺

hydroxide ion

OH¯

peroxide ion

O₂²⁻

cyanide ion

CN⁻

nitrate ion

NO₃-

acetate ion

C₂H₃O₂⁻

chlorate ion

ClO₃−

bromate ion

BrO₃-

iodate ion

IO₃^-

sulfate ion

SO₄²-

hydrogen sulfate or bisulfate ion

HSO₄^–

carbonate ion

CO₃²⁻

hydrogen carbonate or bicarbonate ion

HCO₃-

phosphate ion

PO₄³⁻

hydrogen phosphate ion

HPO₄^2-

dihydrogen phosphate ion

H₂PO₄⁻

permanganate ion

MnO₄⁻

chromate ion

CrO₄^2-

dichromate ion

Cr₂O₇^2-

ammonia

NH₃

water

H₂O

sodium hydroxide

NaOH

hydrogen peroxide

H₂O₂

hydrocyanic acid

HCN(aq)

nitric acid

HNO₃(aq)

acetic acid

CH₃COOH(aq)

chloric acid

HClO₃(aq)

bromic acid

HBrO₃(aq)

iodic acid

HIO₃(aq)

sulfuric acid

H₂SO₄(aq)

carbonic acid

H₂CO₃(aq)

phosphoric acid

H₃PO₄(aq)

perchloric acid

HClO₄(aq)

hydrochloric acid

HCl(aq)

hydrobromic acid

HBr(aq)

hydroiodic acid

HI(aq)