Chemistry; Common Polyatomaic Ions

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Last updated 4:21 AM on 9/17/26
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26 Terms

1
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<p>NH4^+I</p>

NH4^+I

Ammonium ion

2
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<p>C2H3O2- or CH3COO-</p>

C2H3O2- or CH3COO-

Acetate ion

3
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<p>CO3^-2</p>

CO3^-2

Carbonate ion

4
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<p>HCO3-</p>

HCO3-

Hydrogen carbonate ion

(or bicarbonate ion)

5
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<p>ClO-</p>

ClO-

Hypochlorite ion

6
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<p>ClO2-</p>

ClO2-

Chlorite ion

7
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<p>ClO3-</p>

ClO3-

Chlorate ion

8
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<p>ClO4-</p>

ClO4-

Perchlorate ion

9
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<p>CrO4^-2</p>

CrO4^-2

Chromate ion

10
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<p>Cr2O7^-2</p>

Cr2O7^-2

Dichromate ion

11
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<p>OCN-</p>

OCN-

Cyanate ion

12
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<p>SCN-</p>

SCN-

Thiocyanate ion

13
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<p>CN-</p>

CN-

Cyanide ion

14
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<p>OH-</p>

OH-

Hydroxide ion

15
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<p>NO2-</p>

NO2-

Nitrite ion

16
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<p>NO3-</p>

NO3-

Nitrate ion

17
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<p>C2O4^-2</p>

C2O4^-2

Oxalate ion

18
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<p>PO4^-3</p>

PO4^-3

Phosphate ion

19
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<p>MnO4-</p>

MnO4-

Permanganate ion

20
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<p>HPO4^-2</p>

HPO4^-2

Hydrogen phosphate ion

21
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<p>H2PO4-</p>

H2PO4-

Dihydrogen phosphate ion

22
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<p>SO3^-2</p>

SO3^-2

Sulfite ion

23
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<p>HSO3-</p>

HSO3-

Hydrogen sulfite ion

24
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<p>SO4^-2</p>

SO4^-2

Sulfate ion

25
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HSO4-

Hydrogen sulfate ion

26
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<p>S2O3^-2</p>

S2O3^-2

Thiosulfate ion