Question

Mn giúp mk với ạ

Viết các phương trình phản ứng xảy ra cho các sơ đồ sau:

a) HCl  Cl2 FeCl3 NaCl  HCl  CuCl2 AgCl

b) KMnO4Cl2HCl FeCl3AgCl Cl2Br2I2ZnI2 Zn(OH)2

c) MnO2 → Cl2 → KClO3 → KCl → HCl → Cl2 → Clorua vôi

d) Cl2KClO3KClCl2Ca(ClO)2CaCl2Cl2O2

e) KMnO4  Cl2 KClO3 KCl  Cl2  HCl  FeCl2 FeCl3  Fe(OH)3

f) CaCl2  NaCl  HCl  Cl2 CaOCl2 CaCO3 CaCl2 NaCl  NaClO

Answer 1

4HCl+MnO2-->MnCl2+2H2O+Cl2

3Cl2+2Fe-->2FeCl3

FeCl3+3NaOH-->3NaCl+Fe(OH)3

2NaCl+H2SO4-->Na2SO4+2HCl

2HCl+Cuo-->CuCl2+H2O

CuCl2+2AgNO3-->2AgCl+Cu(NO3)2

3)

4HCl+MnO₂→Cl₂+2H₂O+MnCl₂
3Cl₂+6KOH→3H₂O+5KCl+KClO₃
2KClO3→2KCl+3O2
2KCl+H2SO4→K2SO4+2HCl
16HCl+2KMnO₄→5Cl₂+8H₂O+2KCl+2MnCl₂
2Ca(OH)₂+2Cl₂→2H₂O+CaCl₂+Ca(ClO)₂ e)a. 2KMnO4 + 16HCl (đ) -> 2KCl + 2MnCl2 + 5Cl2 + 8H2O (Đ.C Cl2)
Cl2 + KOH -> KCl + KClO3 + H2O
2KClO3 -> 2KCl + 3O2 (đ/c khí O2 lớp 8)
2KCl -> 2K + Cl2
Cl2 + H2O ->HCl + HClO
2HCl + Fe -> FeCl2 + H2
2FeCl2 + Cl2 -> 2FeCl3
FeCl3 + NaOH -> Fe(OH)3 + NaCl

Answer 2

câu c