NH4+
ammonium
H3O+
hydronium
CH3COO-, C2H3O2-
acetate
CN-
cyanide
OH
hydroxide
NO2-
nitrite
NO3-
nitrate
ClO3-
chlorate
ClO-
hypochlorite
ClO2-
chlorite
ClO4-
perchlorate
MnO4-
permanganate
CO3 2-
carbonate
HCO3 2-
hydrogen carbonate, bicarbonate
CrO4 2-
chromate
Cr2O7 2-
dichromate
O2 2-
peroxide
PO4 3-
phosphate
HPO4 2-
hydrogen phosphate
SO3 2-
sulfite
H2PO4 2-
dihydrogen phosphate
SO4 2-
sulfate
HSO4-
hydrogen sulfate, bisulfate