Acetate
C ₂H ₃O⁻ ₂
Carbonate
CO₃²⁻
Hydrogen Carbonate
HCO3-
Perchlorate
ClO4 −
Chlorate
ClO3−
Chlorite
ClO − 2
Hypochlorite
ClO⁻
Chromate
CrO₄²⁻
Dichromate
Cr ₂O²⁻ ₇
Hydroxide
OH¯
Nitrate
NO3-
Nitrite
NO2−
Permanganate
MnO − 4
Peroxide
O22−
Phosphate
PO₄³⁻
Phosphite
PO3− 3
Sulfate
SO₄²-
Sulfite
SO₃²⁻
Ammonium
NH+4
Hydronium
H₃O⁺