NH4 +1
Ammonium
Hg2 +2
Mercury (I)
O2 -2
Peroxide
CN -1
Cyanide
OH -1
Hydroxide
CrO4 -2
Chromate
Cr2O7 -2
Dichromate
MnO4 -1
Permanganate
CO3 -2
Carbonate
HCO3 -1
Hydrogen carbonate (bicarbonate)
PO4 -3
Phosphate
NO2 -1
Nitrite
NO3 -1
Nitrate
SO3 -2
Sulfite
SO4 -2
Sulfate
CIO4 -1
Perchlorate
CIO3 -1
Chlorate
ClO2 -1
Chlorite
ClO -1
Hypochlorite