Atoms, Molecules, And Ions Worksheet - Chapter 2 Page 17
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27Polyatomic ions you should know
The charge is for the whole ionic molecule.
+
NH
4
-
CN
-
-
CH
CO
(or C
H
O
)
3
2
2
3
2
CO
2-
and HCO
-
3
3
3-
PO
4
NO
-
and NO
-
2
3
-
OH
2-
2-
SO
, SO
4
3
-
-
-
-
-
-
-
-
ClO
, ClO
, ClO
, ClO
, BrO
, BrO
, BrO
, BrO
,
2
3
4
2
3
4
-
-
-
-
IO
, IO
, IO
, IO
2
3
4
IUPAC accepted names
water
H
O
water
2
sour water
H
SO
sulfuric acid
2
4
vitriol
H
SO
sulfuric acid
2
4
blue vitriol
CuSO
copper (II) sulfate
4
gypsum
CuSO
copper (II) sulfate
4
Epsom salts
MgSO
magnesium sulfate
4
milk of magnesia
Mg(OH)
magnesium hydroxide
2
corundum
Al
O
aluminum oxide
2
3
red liquor
Al(C
H
O
)
aluminum acetate
2
3
2
3
Indian red
Fe
O
iron (III) oxide
2
3
hematite
Fe
O
iron (III) oxide
2
3
magnetite
Fe
O
iron (II, III) oxide
3
4
17
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