NH₄⁺          Ammonium ion                               CO₃^-2         Carbonate ion

OH^-            Hydroxide ion                                  SO₃^-2          Sulfite ion

CN^-            Cyanide ion                                      SO₄^-2          Sulfate ion

NO₂^-          Nitrite ion                                         HSO₃^-        Hydrogen Sulfite ion

NO₃^-          Nitrate ion                                        HSO₄^-        Hydrogen Sulfate ion

ClO^-           Hypochlorite ion                             PO₄^-3          Phosphate ion

ClO₂^-          Chlorite ion                                     HPO₄^-2       Hydrogen Phosphate ion

ClO₃^-          Chlorate ion                                    H₂PO4^-      Dihydrogen Phosphate ion

ClO₄^-          Perchlorate ion

C₂H₃O₂^-       Acetate ion