MnO2 + H2SO4 → MnSO4 + O2 + H2O

HNO2 → HNO3 + NO + H2O
HNO2 → HNO3 + NO + H2O
HN+3O2→ HN+5O3+ N+2O + H2O
HNO2 → HNO3 + NO + H2O
HN+3O2→ HN+5O3+ N+2O + H2O
+3
N +
1e →
+2
N
HNO2 → HNO3 + NO + H2O
HN+3O2→ HN+5O3+ N+2O + H2O
+3
N +
+3
N
1e →
+2
N
- 2e →
+5
N
HNO2 → HNO3 + NO + H2O
HN+3O2→ HN+5O3+ N+2O + H2O
+3
N +
+3
N
1e →
+2
N
- 2e →
+5
N
2
2
1
HNO2 → HNO3 + NO + H2O
HN+3O2→ HN+5O3+ N+2O + H2O
+3
N +
+3
N
1e →
+2
N
- 2e →
+5
N
2
2
1
HN+3O2→ HN+5O3+2N+2O + H2O
+3
N +
+3
N
1e →
+2
N
- 2e →
+5
N
2
2
1
HNO2 → HNO3 +2NO + H2O
3HNO2→ HNO3 +2NO + H2O
3
3