Common Polyatomic Ions

A set of vocabulary flashcards covering common polyatomic ion names and their chemical formulas from the lecture notes.

Mercury(I) or mercurous

$$Hg_2^{2+}$$

Permanganate

$$MnO_4^-$$

Ammonium

$$NH_4^+$$

Nitrite

$$NO_2^-$$

Cyanide

$$CN^-$$

Nitrate

$$NO_3^-$$

Carbonate

$$CO_3^{2-}$$

Hydroxide

$$OH^-$$

Hydrogen carbonate (or bicarbonate)

$$HCO_3^-$$

Peroxide

$$O_2^{2-}$$

Acetate

$$C_2H_3O_2^-$$

Phosphate

$$PO_4^{3-}$$

Oxalate

$$C_2O_4^{2-}$$

Monohydrogen phosphate

$$HPO_4^{2-}$$

Hypochlorite

$$ClO^-$$

Dihydrogen phosphate

$$H_2PO_4^-$$

Chlorite

$$ClO_2^-$$

Sulfite

$$SO_3^{2-}$$

Chlorate

$$ClO_3^-$$

Sulfate

$$SO_4^{2-}$$

Perchlorate

$$ClO_4^-$$

Hydrogen sulfite (or bisulfite)

$$HSO_3^-$$

Chromate

$$CrO_4^{2-}$$

Hydrogen sulfate (or bisulfate)

$$HSO_4^-$$

Dichromate

$$Cr_2O_7^{2-}$$

Thiosulfate

$$S_2O_3^{2-}$$