Balance the following equations-
1. Cu + HNO3 -- Cu[NO3]2 + H2O + NO2
2. Pb[NO3]2 ---- PbO + NO2 + O2
3. KMnO4 ------- K2MnO4 + MnO2 + O2
4. Al2O3 + H2SO4 -------- Al2[SO4]3 + H2O
5. KMnO4 + HCl --------- KCl + MnCl2 + H2O + Cl2
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Balance the following equations-
1. Cu + HNO3 -- Cu[NO3]2 + H2O + NO2
2. Pb[NO3]2 ---- PbO + NO2 + O2
3. KMnO4 ------- K2MnO4 + MnO2 + O2
4. Al2O3 + H2SO4 -------- Al2[SO4]3 + H2O
5. KMnO4 + HCl --------- KCl + MnCl2 + H2O + Cl2
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3Cu+8HNO
3
→3Cu(NO
3
)
2
+2NO+4H
2
O.