IB Chemistry SL Polyatomic Ions List

C2H3O2^- ethanoate (acetate)

CN^- cyanide

SCN^- thiocyanate

H2PO4^- dihydrogen phosphate

HCO3^- hydrogen carbonate (bicarbonate)

HSO4^- hydrogen sulfate (bisulfate)

OH^- hydroxide

NO^3- nitrate

NO^2- nitrite

(MnO)^4- permanganate

(CO3)2- carbonate

CrO42- chromate

Cr2O7^2- dichromate

HPO4^2- hydrogen phosphate

SO4^2- sulfate

SO3^2- sulfite

PO4^3- phosphate

NH4^+ ammonium

HCl Hydrochloric acid

HNO3 Nitric Acid

HClO4 Perchloric Acid

H2SO4 Sulfuric Acid Acetic Acid

CH3COOH Acetic Acid

H2CO3 Carbonic Acid

H3PO4 Phosphoric Acid

Ba(OH)2 Barium hydroxide

Ca(OH)2 Calcium hydroxide

KOH Potassium hydroxide

NaOH Sodium hydroxide

NH3 Ammonia

NH2CH2CH3 Ethyl amine