ammonium
NH4+
hydronium
H3O+
peroxide
O2(-2)
hydroxide
OH-
acetate
CH3COO-
cyanide
CN-
azide
N3-
carbonate
CO3(-2)
bicarbonate
HCO3-
nitrate
NO3-
nitrite
NO2-
sulfate
SO4(-2)
hydrogen sulfate
HSO4-
sulfite
SO3(-2)
hydrogen sulfite
HSO3-
phosphate
PO4(-3)
hydrogen phosphate
HPO4(-2)
dihydrogen phosphate
H2PO4-
perchlorate
ClO4-
chlorate
ClO3-
chlorite
ClO2-
hypochlorite
ClO1
chromate
CrO4(-2)
dichromate
Cr2O7(-2)