Oxi hóa khử { các bn giải hộ mik cụ thể nha, lập bán gì đó nữa nha} giúp mik nha
24. FexOy + HNO3 -> Fe(NO3)3 + NO + H2O
25. FexOy + HNO3 -> Fe(NO3)3 + NO2 + H2O
26. FexOy + H2SO4 -> Fe2(SO4)3 + NO2 + H2O
27. FeS + HNO3 -> Fe(NO3)3 + NO + H2O + H2SO4
28. FeS + HNO3 -> Fe(NO3)3 + NO2 + H2O + H2SO4
29. FeS2 + HNO3 -> Fe(NO3)3 + N2O + H2O + H2SO4
30. Cu2S + HNO3 -> Cu(NO3)2 + NO + H2O + CuSO4
31. CuFeS2 + HNO3 -> Cu(NO3)2 + Fe(NO3)3 + NO + H2O + H2SO4
32. HCl + KMnO4 -> KCl + MnCl2 + Cl2 + H2O
33. NO + K2Cr2O7 + H2SO4 -> HNO3 + K2SO4 + Cr2(SO4)3 + H2O
34. H2S + HClO3 -> HCl + H2SO4
24.
xFe+2y/x --------------> xFe+3 + (3x - 2y)e (x3)
N+ 5 + 3e -------------> N+2 (x(3x-2y))
=> 3xFe+2y/x + (3x-2y)N+5 -----> 3xFe+3 + (3x-2y)N+2
Vậy pư cân bằng như sau:
3FexOy + (12x - 2y)HNO3 ----> 3xFe(NO3)3 + (3x-2y)NO + (6x-y)H2O
25.
xFe+2y/x --------------> xFe+3 + (3x - 2y)e -----------------(x1)
N+ 5 + 1e -------------> N+4 ----------------------- (x(3x-2y))
=> xFe+2y/x + (3x-2y)N+5 -----> xFe+3 + (3x-2y)N+2
Vậy pư cân bằng như sau:
FexOy + (6x - 2y)HNO3 ----> xFe(NO3)3 + (3x-2y)NO2 + (3x-y)H2O
26.
2xFe+2y/x --------------> 2xFe+3 + (6x - 4y)e -----------------(x1)
S+ 6 + 2e -------------> S+4 ----------------------- (x(3x-2y))
=> 2xFe+2y/x + (3x-2y)S+6 -----> 2xFe+3 + (3x-2y)S+4
Vậy pư cân bằng như sau:
2FexOy + (6x - 2y)H2SO4 ---> xFe2(SO4)3 + (3x-2y)SO2 + (6x-2y)H2O
27.
Fe+2 -------------> Fe+3 + 1e
S-2 ---------------> S+6 + 8e
=> FeS -------------> Fe+3 + S+6 + 9e
N+5 + 3e -----> N+2
=> FeS + 3N+5 -----> Fe+3 + S+6 + 3N+2
Vậy Pư cân bằng như sau:
FeS + 6HNO3 ---> Fe(NO3)3 + 3NO + H2SO4 + 2H2O
27.
Fe+2 -------------> Fe+3 + 1e
S-2 ---------------> S+6 + 8e
=> FeS -------------> Fe+3 + S+6 + 9e
N+5 + 1e -----> N+4
=> FeS + 9N+5 -----> Fe+3 + S+6 + 9N+4
Vậy Pư cân bằng như sau:
FeS + 12HNO3 ---> Fe(NO3)3 + 9NO2 + H2SO4 + 5H2O
29.
8FeS2 + 54HNO3 ----> 8Fe(NO3)3 + 15N2O + 16H2SO4 + 11H2O.
30.
3Cu2S + 22HNO3 ---> 6Cu(NO3)2 + 10NO + 8H2O + 3H2SO4.
31.
3CuFeS2 + 32HNO3 ---> 3Cu(NO3)2 + 3Fe(NO3)3+ 17NO + 10H2O + 6H2SO4.
32. 16HCl + 2KMnO4 -> 2KCl + 2MnCl2 + 5Cl2 + 8H2O
33. 2NO + K2Cr2O7 + 4H2SO4 -> 2HNO3 + K2SO4 + Cr2(SO4)3 + 3H2O
34. 3H2S + 4HClO3 -> 4HCl + 3H2SO4
