common polyatomic ions

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memorize for chem 1c

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51 Terms

1
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SO₃²⁻ 

sulfite

2
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CO32−

carbonate

3
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HCO3−

hydrogen carbonate or bicarbonate

4
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CH3COO−
C2H3O2−

acetate

5
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CN−

cyanide

6
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SCN−

thiocynate

7
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ClO−

hypoclorite

8
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ClO2−

chlorite

9
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ClO3−

chlorate

10
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ClO4−

perchlorate

11
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CrO42−

chromate

12
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Cr2O72−

dichromate

13
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MnO4−

permanganate

14
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N₃⁻

azide

15
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NH4+

ammonium

16
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NO2−

nitrite

17
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NO3−

nitrate

18
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OH−

hydroxide

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O22−

peroxide

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PO43−

phosphate

21
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HPO42−

hydrogen phosphate

22
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H2PO4−

dihydrogen phosphate

23
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S₂²⁻ 

disulfide

24
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SO42−

sulfate

25
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HSO₃⁻ 

hydrogen sulfite or bisulfite

26
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HSO4−

hydrogen sulfate or bisulfate

27
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CH3COOH or CH3CO2H

acetic acid

28
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Ca(OH)2

calcium hydroxide

29
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HCl

hydrochloric acid

30
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NaOH

sodium hydroxide

31
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KOH

potassium hydroxide

32
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HClO4

perchloric acid

33
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HClO3

chloric acid

34
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HClO2

chlorous acid

35
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HClO

hypochlorous acid

36
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ClO4-

perchlorate

37
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ClO3-

chlorate

38
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ClO2-

chlorite

39
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ClO-

hypochlorite

40
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NH3

ammonia

41
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HCN

hydrocyanic acid

42
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MgCO3

magnesium carbonate

43
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(NH4)CO3

amonium carbonate

44
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HNO3

nitric acid

45
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FeO

iron(II) oxide

46
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HF

hydrofluoric acid

47
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H2SO3

sulfurous acid

48
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Na2SO4

sodium sulfate

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HClO4

perchloric acid

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Fe(NO3)3

iron(III) nitrate

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HIO

hypoiodous acid