NH₄⁺

ammonium ion

C₂H₃O₂^–

acetate ion

ClO₃^–

chlorate ion

OH^–

hydroxide ion

NO₃^–

nitrate ion

CO₃^2-

carbonate ion

O₂^2-

peroxide ion

SO₄^2-

sulfate ion

PO₄^3-

phosphate ion

ClO₂^–

chlorite ion

ClO₄^–

perchlorate ion

ClO^–

hypochlorite ion

CN^–

cyanide ion

HCO₃^–

hydrogen carbonate ion

HSO₄^–

hydrogen sulfate ion

MnO₄^–

permanganate ion

HPO₄^2-

hydrogen phosphate ion

H₂PO₄^–

dihydrogen phosphate ion

CrO₄^2-

chromate ion

Cr₂O₇^2-

dichromate ion

Fe⁺³

iron (III) ion or ferric ion