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4
Fe
^{II}
S
_{2}
^{I}
+
11
O
_{2}
^{0}
→
8
S
^{IV}
O
_{2}
^{II}
+
2
Fe
_{2}
^{III}
O
_{3}
Fe
^{II}

1
e
^{}
→
Fe
^{III}
S
^{I}

5
e
^{}
→
S
^{IV}
O
^{0}
+
2
e
^{}
→
O
^{II}
Change the oxidation states
Search by reactants (
Fe
S
_{2}
,
O
_{2}
)
1.
FeS
_{2}
+
O
_{2}
→ SO
_{2}
+ Fe
_{2}
O
_{3}
2.
FeS
_{2}
+ H
_{2}
O +
O
_{2}
→ Fe
_{2}
O
_{3}
+ SO
_{4}
^{2}
+ H
^{+}
3.
FeS
_{2}
+
O
_{2}
+ N
_{2}
→ Fe
_{2}
O
_{3}
+ SO
_{3}
+ NO
4.
FeS
_{2}
+
O
_{2}
→ SO
_{2}
+ Fe
_{2}
SO
_{3}
5.
FeS
_{2}
+ H
_{2}
O +
O
_{2}
→ Fe
^{2+}
+ SO
_{4}
^{2}
+ H
^{+}
6.
FeS
_{2}
+ H
_{2}
O +
O
_{2}
→ Fe(OH)
_{3}
+ H
_{2}
SO
_{4}
7.
FeS
_{2}
+ H
_{2}
O +
O
_{2}
→ H
_{2}
SO
_{4}
+ FeSO
_{4}
Search by products (
S
O
_{2}
,
Fe
_{2}
O
_{3}
)
1.
FeS
_{2}
+ O
_{2}
→
SO
_{2}
+
Fe
_{2}
O
_{3}
2.
FeS + O
_{2}
→
SO
_{2}
+
Fe
_{2}
O
_{3}
3.
FeAsS + O
_{2}
→
Fe
_{2}
O
_{3}
+ As
_{4}
O
_{6}
+
SO
_{2}
4.
Fe
_{2}
S
_{3}
+ O
_{2}
→
SO
_{2}
+
Fe
_{2}
O
_{3}
5.
Fe
_{2}
(SO
_{4}
)
_{3}
→
Fe
_{2}
O
_{3}
+
SO
_{2}
+ O
_{2}
Search by reactants (
Fe
S
_{2}
,
O
_{2}
) and by products (
S
O
_{2}
,
Fe
_{2}
O
_{3}
)
1.
FeS
_{2}
+
O
_{2}
→
SO
_{2}
+
Fe
_{2}
O
_{3}