Common Polyatomic Ions

Vocabulary practice flashcards covering names and chemical formulas for common polyatomic ions.

Ammonium

Polyatomic ion with the formula $NH_4^+$

Nitrite

Polyatomic ion with the formula $NO_2^-$

Nitrate

Polyatomic ion with the formula $NO_3^-$

Sulfite

Polyatomic ion with the formula $SO_3^{2-}$

Hydrogen sulfite

Polyatomic ion with the formula $HSO_3^-$

Sulfate

Polyatomic ion with the formula $SO_4^{2-}$

Hydrogen sulfate

Polyatomic ion with the formula $HSO_4^-$

Hydroxide

Polyatomic ion with the formula $OH^-$

Cyanide

Polyatomic ion with the formula $CN^-$

Phosphate

Polyatomic ion with the formula $PO_4^{3-}$

Hydrogen phosphate

Polyatomic ion with the formula $HPO_4^{2-}$

Dihydrogen phosphate

Polyatomic ion with the formula $H_2PO_4^-$

Carbonate

Polyatomic ion with the formula $CO_3^{2-}$

Hydrogen carbonate

Polyatomic ion with the formula $HCO_3^-$

Acetate

Polyatomic ion with the formula $C_2H_3O_2^-$

Oxalate

Polyatomic ion with the formula $C_2O_4^{2-}$

Permanganate

Polyatomic ion with the formula $MnO_4^-$

Dichromate

Polyatomic ion with the formula $Cr_2O_7^{2-}$

Chromate

Polyatomic ion with the formula $CrO_4^{2-}$

Peroxide

Polyatomic ion with the formula $O_2^{2-}$

Hypochlorite

Polyatomic ion with the formula $ClO^-$

Chlorite

Polyatomic ion with the formula $ClO_2^-$

Chlorate

Polyatomic ion with the formula $ClO_3^-$

Perchlorate

Polyatomic ion with the formula $ClO_4^-$