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Common Polyatomic Ions

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Total cards: 24•Content version: v3•Public deck•Updated: 8/1/2026

Card preview (24)

#1
Front (Question)

Mercury(I)

Back (Answer)

Hg2^2+

#2
Front (Question)

Ammonium

Back (Answer)

NH4^+

#3
Front (Question)

Nitrite

Back (Answer)

NO2^-

#4
Front (Question)

Nitrate

Back (Answer)

NO3^-

#5
Front (Question)

Sulfite

Back (Answer)

SO3^2-

#6
Front (Question)

Sulfate

Back (Answer)

SO4^2-

#7
Front (Question)

Hydrogen sulfate / Bisulfate

Back (Answer)

HSO4^-

#8
Front (Question)

Hydroxide

Back (Answer)

OH^-

#9
Front (Question)

Cyanide

Back (Answer)

CN^-

#10
Front (Question)

Phosphate

Back (Answer)

PO4^3-

#11
Front (Question)

Hydrogen phosphate

Back (Answer)

HPO4^2-

#12
Front (Question)

Dihydrogen phosphate

Back (Answer)

H2PO4^-

#13
Front (Question)

Thiocyanate

Back (Answer)

NCS^- OR SCN^-

#14
Front (Question)

Carbonate

Back (Answer)

CO3^2-

#15
Front (Question)

Hydrogen carbonate / Bicarbonate

Back (Answer)

HCO3^-

#16
Front (Question)

Hypochlorite

Back (Answer)

ClO^- OR OCl^-

#17
Front (Question)

Chlorite

Back (Answer)

ClO2^-

#18
Front (Question)

Chlorate

Back (Answer)

ClO3^-

#19
Front (Question)

Perchlorate

Back (Answer)

ClO4^-

#20
Front (Question)

Acetate

Back (Answer)

C2H3O2^-

#21
Front (Question)

Permanganate

Back (Answer)

MnO4^-

#22
Front (Question)

Dichromate

Back (Answer)

Cr2O7^2-

#23
Front (Question)

Chromate

Back (Answer)

CrO4^2-

#24
Front (Question)

Peroxide

Back (Answer)

O2^2-