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6
Zn
^{0}
+
As
_{2}
^{III}
O
_{3}
+
6
H
_{2}
S
O
_{4}
→
6
Zn
^{II}
S
O
_{4}
+
2
As
^{III}
H
_{3}
+
3
H
_{2}
O
Zn
^{0}

2
e
^{}
→
Zn
^{II}
As
^{III}
+
6
e
^{}
→
As
^{III}
Change the oxidation states
Search by reactants (
Zn
,
As
_{2}
O
_{3}
,
H
_{2}
S
O
_{4}
)
1.
Zn
+
As
_{2}
O
_{3}
+
H
_{2}
SO
_{4}
→ ZnSO
_{4}
+ AsH
_{3}
+ H
_{2}
O
2.
Zn
+
As
_{2}
O
_{3}
+
H
_{2}
SO
_{4}
→ ZnSO
_{4}
+ As + H
_{2}
O
Search by products (
Zn
S
O
_{4}
,
As
H
_{3}
,
H
_{2}
O
)
1.
Zn + As
_{2}
O
_{3}
+ H
_{2}
SO
_{4}
→
ZnSO
_{4}
+
AsH
_{3}
+
H
_{2}
O
2.
Ag
_{3}
AsO
_{4}
+ Zn + H
_{2}
SO
_{4}
→ Ag +
AsH
_{3}
+
ZnSO
_{4}
+
H
_{2}
O
3.
Na
_{3}
AsO
_{4}
+ Zn + H
_{2}
SO
_{4}
→
ZnSO
_{4}
+
AsH
_{3}
+ Na
_{2}
SO
_{4}
+
H
_{2}
O
4.
As
_{4}
O
_{6}
+ Zn + H
_{2}
SO
_{4}
→
ZnSO
_{4}
+
AsH
_{3}
+
H
_{2}
O
5.
K
_{3}
AsO
_{4}
+ Zn + H
_{2}
SO
_{4}
→
AsH
_{3}
+
ZnSO
_{4}
+ K
_{2}
SO
_{4}
+
H
_{2}
O
Search by reactants (
Zn
,
As
_{2}
O
_{3}
,
H
_{2}
S
O
_{4}
) and by products (
Zn
S
O
_{4}
,
As
H
_{3}
,
H
_{2}
O
)
1.
Zn
+
As
_{2}
O
_{3}
+
H
_{2}
SO
_{4}
→
ZnSO
_{4}
+
AsH
_{3}
+
H
_{2}
O