NH₄⁺

ammonium ion

C₂H₃O₂^–

acetate ion

CO₃^2-

carbonate ion

ClO₃^–

chlorate ion

OH^–

hydroxide ion

NO₃^–

nitrate ion

PO₄^3-

phosphate ion

SO₄^2-

sulfate ion

ClO₂^–

chlorite ion

CrO₄^2-

chromate ion

cyanide ion

Cr₂O₇^2-

dichromate ion

HCO₃^–

hydrogen carbonate ion

HSO₄^–

hydrogen sulfate ion

ClO^–

hypochlorite ion

NO₂^–

nitrite ion

ClO₄^–

perchlorate ion

MnO₄^–

permanganate ion

SO₃^2-

sulfite ion