Common Polyatomic Ions and Common Acids

A complete vocabulary flashcard set for common polyatomic ions, hydrohalic acids, and oxyacids.

Acetate ion

$$C_2H_3O_2^-$$

Ammonium ion

$$NH_4^+$$

Chromate ion

$$CrO_4^{2-}$$

Dichromate ion

$$Cr_2O_7^{2-}$$

Cyanide ion

$$CN^-$$

Hydroxide ion

$$OH^-$$

Peroxide ion

$$O_2^{2-}$$

Oxalate ion

$$C_2O_4^{2-}$$

Permanganate ion

$$MnO_4^-$$

Nitrate ion

$$NO_3^-$$

Nitrite ion

$$NO_2^-$$

Carbonate ion

$$CO_3^{2-}$$

Bicarbonate ion or hydrogen carbonate ion

$$HCO_3^-$$

Phosphate ion

$$PO_4^{3-}$$

Hydrogen phosphate ion

$$HPO_4^{2-}$$

Dihydrogen phosphate ion

$$H_2PO_4^-$$

Sulfate ion

$$SO_4^{2-}$$

Bisulfate ion or hydrogen sulfate ion

$$HSO_4^-$$

Sulfite ion

$$SO_3^{2-}$$

Bisulfite ion or hydrogen sulfite ion

$$HSO_3^-$$

Perchlorate ion

$$ClO_4^-$$

Chlorate ion

$$ClO_3^-$$

Chlorite ion

$$ClO_2^-$$

Hypochlorite ion

$$ClO^-$$

Iodide ion

$$I^-$$

Hydrofluoric acid

$$HF_{(aq)}$$

Hydrochloric acid

$$HCl_{(aq)}$$

Hydrobromic acid

$$HBr_{(aq)}$$

Hydroiodic acid

$$HI_{(aq)}$$

Phosphoric acid

$$H_3PO_4$$

Sulfuric acid

$$H_2SO_4$$

Sulfurous acid

$$H_2SO_3$$

Carbonic acid

$$H_2CO_3$$

Nitric acid

$$HNO_3$$

Nitrous acid

$$HNO_2$$

Acetic acid

$$HC_2H_3O_2$$

Oxalic acid

$$H_2C_2O_4$$

Perchloric acid

$$HClO_4$$

Chloric acid

$$HClO_3$$

Chlorous acid

$$HClO_2$$

Hypochlorous acid

$$HClO$$

Hydrohalic acids

A class of binary acids consisting of hydrogen paired with a halogen in aqueous solution.

Oxyacids

Oxygen-containing acids, such as $H_3PO_4$, $H_2SO_4$, $HNO_3$, and $HClO_4$.