Question

Cân bằng phản ứng oxi hóa
1)      FeI₂+ H₂SO₄---->Fe₂(SO₄)₃ +SO₂+ I₂+ H₂O

2)      MnBr₂+Pb₃O₄+ HNO₃---->HMnO₄+ Br₂+ Pb(NO₃)₂ + H₂O

3)      CrI₃+ KOH+ Cl₂---->K₂CrO₄+ KIO₄+ KCl+ H₂O

4)      FeI₂+ H₂SO₄---->Fe₂(SO₄)₃+ SO₂+ I₂+ H₂O

5)      Cu₂S+HNO₃---->Cu(NO₃)₂+ CuSO₄+ NO₂+ H₂O

6)       FeSO₄+ KMnO₄+KHSO₄---->Fe₂(SO₄)₃+K₂SO₄+MnSO₄+H₂O

Answer 1

1) FeI2+ H2SO4---->Fe2(SO4)3 +SO2+ I2+ H2O

2) MnBr2+Pb3O4+ HNO3---->HMnO4+ Br2+ Pb(NO3)2 + H2O

3) CrI3+ KOH+ Cl2---->K2CrO4+ KIO4+ KCl+ H2O

4) FeI2+ H2SO4---->Fe2(SO4)3+ SO2+ I2+ H2O

5) Cu2S+HNO3---->Cu(NO3)2+ CuSO4+ NO2+ H2O

6) FeSO4+ KMnO4+KHSO4---->Fe2(SO4)3+K2SO4+MnSO4+H2