Acetate ion
CH3COO^-
Sulfate ion
SO4^2-
Hydronium ion
H3O^+
Carbonate ion
CO3^2-
Nitrate ion
NO3^-
Phosphate ion
PO4^3-
Cyanide ion
CN^-
Hydroxide ion
OH^-
Chlorate ion
ClO3^-
Ammonium ion
Nh4^+
Nitrite ion
NO2^-
Sulfite ion
SO3^-2
Chlorite ion
ClO2^-