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Ammonium ion

NH4(+)

Acetate ion

CH3COO(-)

Carbonate ion

CO3(2-)

Hydrogen carbonate ion

HCO3(-)

Hypochlorite ion

ClO(-)

Chlorite ion

ClO2(-)

Chlorate ion

ClO3(-)

Perchlorate ion

ClO4(-)

Chromate ion

CrO4(2-)

Dichromate ion

Cr2O7(2-)

Cyanide ion

CN(-)

Hydroxide ion

OH(-)

Nitrite ion

NO2(-)

Nitrate ion

NO3(-)

Oxalate ion

C2O4(2-)

Permanganate ion

MnO4(-)

Phosphate ion

PO4(3-)

Hydrogen phosphate ion

HPO4(2-)

Dihydrogen phosphate ion

H2PO4(-)

Sulfite ion

SO3(2-)

Hydrogen sulfite ion

HSO3(-)

Sulfate ion

SO4(2-)

Hydrogen sulfate ion

HSO4(-)

Thiosulfate ion

S2O3(2-)

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