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?
Mn
O
4
+
?
H
+
?
N
O
2
→
?
Mn
+
?
N
O
3
+
?
H
2
O
Error: Error in balancing the equation: There is an infinite amount of solutions.
Warning: Unknown compound '
MnO4
'
Warning: Unknown compound '
H
'
Warning: Unknown compound '
NO3
'