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2
Fe
II
Cl
2
+
H
2
O
2
-I
+
2
H
Cl
→
2
Fe
III
Cl
3
+
2
H
2
O
-II
Fe
II
-
1
e
-
→
Fe
III
O
-I
+
e
-
→
O
-II
Change the oxidation states
Search by reactants (
Fe
Cl
2
,
H
2
O
2
,
H
Cl
)
1.
FeCl
2
+
H
2
O
2
+
HCl
→ FeCl
3
+ H
2
O
Search by products (
Fe
Cl
3
,
H
2
O
)
1.
FeCl
2
+ H
2
O
2
+ HCl →
FeCl
3
+
H
2
O
2.
FeCl
2
+ K
2
Cr
2
O
7
+ HCl →
FeCl
3
+ CrCl
3
+ KCl +
H
2
O
3.
FeCl
2
+ KMnO
4
+ HCl →
FeCl
3
+ MnCl
2
+ KCl +
H
2
O
4.
HCl + Fe(OH)
3
→
FeCl
3
+
H
2
O
5.
Fe
2
O
3
+ HCl →
FeCl
3
+
H
2
O
6.
HNO
3
+ FeCl
2
+ HCl → NO +
FeCl
3
+
H
2
O
7.
FeCl
2
+ HNO
2
+ H
2
SO
4
→
FeCl
3
+ N
2
+ Fe
2
(SO
4
)
3
+
H
2
O
8.
C
6
H
5
NO
2
+ Fe + HCl → C
6
H
5
NH
2
+
FeCl
3
+
H
2
O
9.
FeCl
2
+ KClO
3
+ HCl →
FeCl
3
+ KCl +
H
2
O
Search by reactants (
Fe
Cl
2
,
H
2
O
2
,
H
Cl
) and by products (
Fe
Cl
3
,
H
2
O
)
1.
FeCl
2
+
H
2
O
2
+
HCl
→
FeCl
3
+
H
2
O