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Peroxide
O₂²⁻
Oxalate
C₂O₄²⁻
Dichromate
Cr₂O₇²⁻
Chromate
CrO₄²⁻
Carbonate
CO₃²⁻
Sulfite
SO₃²⁻
Sulfate
SO₄²⁻
Hypochlorite
ClO⁻
Chlorite
ClO₂⁻
Chlorate
ClO₃⁻
Perchlorate
ClO₄⁻
Permanganate
MnO₄⁻
Bicarbonate
HCO₃⁻
Nitrite
NO₂⁻
Nitrate
NO₃⁻
Acetate
C₂H₃O₂⁻
Hydroxide
OH⁻
Ammonium
NH₄⁺
Phosphate
PO₄³⁻
Phosphite
PO₃³⁻
Arsenate
AsO₄³⁻