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Complete List of Polyatomic Ions

Polyatomic Ions:

Memorize the name and formula (must be written exactly the same)

Name

Formula

Nitrate

NO3-1

Nitrite

NO2-1

Sulfate

SO4-2

Sulfite

SO3-2

Ammonium

NH4+1

Hydroxide

OH -1

Acetate

C2H3O2-1

Carbonate

CO3-2

Chromate

CrO4-2

Phosphate

PO4-3

Phosphite

PO3-3

Chlorate

ClO3-1

Chlorite

ClO2-1

Cyanide

CN -1

Hydrogen Carbonate (Bicarbonate)

HCO3-1

Hypochlorite

ClO -1

Perchlorate

ClO4 -1

Dichromate

Cr2O7-2

Permanganate

MnO4 -1

Oxalate

C2O4-2

Complete List of Polyatomic Ions

Polyatomic Ions:

Memorize the name and formula (must be written exactly the same)

Name

Formula

Nitrate

NO3-1

Nitrite

NO2-1

Sulfate

SO4-2

Sulfite

SO3-2

Ammonium

NH4+1

Hydroxide

OH -1

Acetate

C2H3O2-1

Carbonate

CO3-2

Chromate

CrO4-2

Phosphate

PO4-3

Phosphite

PO3-3

Chlorate

ClO3-1

Chlorite

ClO2-1

Cyanide

CN -1

Hydrogen Carbonate (Bicarbonate)

HCO3-1

Hypochlorite

ClO -1

Perchlorate

ClO4 -1

Dichromate

Cr2O7-2

Permanganate

MnO4 -1

Oxalate

C2O4-2

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