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2
K
Mn
^{VII}
O
_{4}
+
10
K
I
^{I}
+
8
H
_{2}
S
O
_{4}
→
2
Mn
^{II}
S
O
_{4}
+
6
K
_{2}
S
O
_{4}
+
5
I
_{2}
^{0}
+
8
H
_{2}
O
Mn
^{VII}
+
5
e
^{}
→
Mn
^{II}
I
^{I}

1
e
^{}
→
I
^{0}
Change the oxidation states
Search by reactants (
K
Mn
O
_{4}
,
K
I
,
H
_{2}
S
O
_{4}
)
1.
KMnO
_{4}
+
KI
+
H
_{2}
SO
_{4}
→ MnSO
_{4}
+ K
_{2}
SO
_{4}
+ I
_{2}
+ H
_{2}
O
Search by products (
Mn
S
O
_{4}
,
K
_{2}
S
O
_{4}
,
I
_{2}
,
H
_{2}
O
)
1.
KMnO
_{4}
+ KI + H
_{2}
SO
_{4}
→
MnSO
_{4}
+
K
_{2}
SO
_{4}
+
I
_{2}
+
H
_{2}
O
2.
KI + H
_{2}
SO
_{4}
+ MnO
_{2}
→
MnSO
_{4}
+
K
_{2}
SO
_{4}
+
I
_{2}
+
H
_{2}
O
3.
MgI
_{2}
+ KMnO
_{4}
+ H
_{2}
SO
_{4}
→ MgSO
_{4}
+
K
_{2}
SO
_{4}
+
MnSO
_{4}
+
I
_{2}
+
H
_{2}
O
Search by reactants (
K
Mn
O
_{4}
,
K
I
,
H
_{2}
S
O
_{4}
) and by products (
Mn
S
O
_{4}
,
K
_{2}
S
O
_{4}
,
I
_{2}
,
H
_{2}
O
)
1.
KMnO
_{4}
+
KI
+
H
_{2}
SO
_{4}
→
MnSO
_{4}
+
K
_{2}
SO
_{4}
+
I
_{2}
+
H
_{2}
O