Chemistry, asked by ammu10175, 5 months ago

(c) Balance the following equations: [5]

(i) Cu + HNO3 Cu(NO3)2 + H2O + NO2

(ii) KMnO4 + HCl KCl + MnCl2 + H2O + Cl2

(iii) Al2O3 + H2SO4 Al2(SO4)3 + H2O

(iv)Pb(NO3)2 PbO + NO2 + O2

(v) KMnO4 K2MnO4 + MnO2 + O2​

Answers

Answered by OOOIRKIOOO
9

Cu + HNO3 → Cu(NO3)2 + H2O + NO2

☞ Cu + 4HNO3 → Cu(NO3)2 + 2H2O + 2NO2  

KMnO4 + HCl → KCl + MnCl2 + H2O + Cl2

2KMnO4 + 16HCl → 2KCl + 2MnCl2 + 8H2O + 5Cl2  

Al2O3 + H2SO4 → Al2(SO4)3 + H2O

☞ Al2O3 + 3H2SO4 → Al2(SO4)3 + 3H2O

Pb(NO3)2 PbO + NO2 + O2

2Pb(NO3)2 → 2PbO + 4NO2 + O2

KMnO4 → K2MnO4 + MnO2 + O2​

2KMnO4 → K2MnO4 + MnO2 + O2​

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