Common Polyatomic Ions

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

Ammonium

A polyatomic ion with the chemical formula $NH_4^{+1}$.

Cyanide

A polyatomic ion with the chemical formula $CN^{-1}$.

Carbonate

A polyatomic ion with the chemical formula $CO_3^{-2}$.

Hydrogen carbonate (or bicarbonate)

A polyatomic ion with the chemical formula $HCO_3^{-1}$.

Sulfate

A polyatomic ion with the chemical formula $SO_4^{-2}$.

Dichromate

A polyatomic ion with the chemical formula $Cr_2O_7^{-2}$.

Acetate

A polyatomic ion with the chemical formula $C_2H_3O_2^{-1}$.

Perchlorate

A polyatomic ion with the chemical formula $ClO_4^{-1}$.

Nitrate

A polyatomic ion with the chemical formula $NO_3^{-1}$.

Hydroxide

A polyatomic ion with the chemical formula $OH^{-1}$.

Peroxide

A polyatomic ion with the chemical formula $O_2^{-2}$.

Phosphate

A polyatomic ion with the chemical formula $PO_4^{-3}$.