a) 
\(MnO_2+4HCl\rightarrow MnCl_2+Cl_2+2H_2O\)

\(2Fe+3Cl_2\underrightarrow{t^o}2FeCl_3\)

\(FeCl_3+3NaOH\rightarrow Fe\left(OH\right)_3\downarrow+3NaCl\)

\(2NaCl+H_2SO_4\underrightarrow{t^o}Na_2SO_4+2HCl\)

\(CuO+2HCl\rightarrow CuCl_2+H_2O\)

\(CuCl_2+2AgNO_3\rightarrow Cu\left(NO_3\right)_2+2AgCl\downarrow\)

b)

\(2KMnO_4+16HCl\rightarrow2KCl+2MnCl_2+5Cl_2+8H_2O\)

\(H_2+Cl_2\underrightarrow{t^o}2HCl\)

\(Fe_2O_3+6HCl\rightarrow2FeCl_3+3H_2O\)

\(FeCl_3+3AgNO_3\rightarrow Fe\left(NO_3\right)_3+3AgCl\downarrow\)

\(2AgCl\underrightarrow{as}2Ag+Cl_2\)

\(2NaBr+Cl_2\rightarrow2NaCl+Br_2\)

\(2NaI+Br_2\rightarrow2NaBr+I_2\)

\(Zn+I_2\underrightarrow{H_2O}ZnI_2\)

\(ZnI_2+2NaOH\rightarrow2NaI+Zn\left(OH\right)_2\)

c)
\(MnO_2+4HCl\rightarrow MnCl_2+Cl_2+2H_2O\)

\(3Cl_2+6KOH\underrightarrow{t^o}5KCl+KClO_3+3H_2O\)

\(2KClO_3\underrightarrow{t^o}2KCl+3O_2\)

\(2KCl+H_2SO_4\underrightarrow{t^o}K_2SO_4+2HCl\)

\(2KMnO_4+16HCl\rightarrow2KCl+2MnCl_2+5Cl_2+8H_2O\)

\(Ca\left(OH\right)_2+Cl_2\rightarrow CaOCl_2+H_2O\)

a) 

\(MnO_2+4HCl\underrightarrow{t^o}MnCl_2+Cl_2+2H_2O\)

\(2Fe+3Cl_2\underrightarrow{t^o}2FeCl_3\)

\(FeCl_3+3NaOH\rightarrow Fe\left(OH\right)_3+3NaCl\)

\(2NaCl\left(r\right)+H_2SO_4đ\rightarrow Na_2SO_4+2HCl\)

\(CuO+2HCl\rightarrow CuCl_2+H_2O\)

\(CuCl_2+2AgNO_3\rightarrow2AgCl+Cu\left(NO_3\right)_2\)

b) \(2KMnO_4+16HClđ\rightarrow2KCl+2MnCl_2+5Cl_2+8H_2O\)

\(Cl_2+H_2\underrightarrow{as}2HCl\)

\(Fe_2O_3+6HCl\rightarrow2FeCl_3+3H_2O\)

\(FeCl_3+3AgNO_3\rightarrow3AgCl+Fe\left(NO_3\right)_3\)

\(2AgCl\underrightarrow{as}2Ag+Cl_2\)

\(Cl_2+2NaBr\rightarrow2NaCl+Br_2\)

\(Br_2+2NaI\rightarrow2NaBr+I_2\)

\(Zn+I_2\underrightarrow{t^o}ZnI_2\)

\(ZnI_2+2NaOH\rightarrow2NaI+Zn\left(OH\right)_2\)

c. \(MnO_2+4HCl\underrightarrow{t^o}MnCl_2+Cl_2+2H_2O\)

\(3Cl_2+6KOH\rightarrow3H_2O+5HCl+KClO_3\)

\(2KClO_3\xrightarrow[MnO_2]{t^o}2KCl+3O_2\)

\(2KCl\left(r\right)+H_2SO_4đ\underrightarrow{t^o}K_2SO_4+2HCl\)

\(MnO_2+4HCl\underrightarrow{t^o}MnCl_2+Cl_2+H_2O\)

\(Cl_2+Ca\left(OH\right)_2\rightarrow CaOCl_2+H_2O\)

e. \(2KMnO_4+16HClđ\rightarrow2KCl+2MnCl_2+5Cl_2+8H_2O\)

\(2KClO_3\xrightarrow[MnO_2]{t^o}2KCl+3O_2\)

\(2KCl+2H_2O\underrightarrow{dpdd}2KOH+H_2+Cl_2\)

\(H_2+Cl_2\underrightarrow{t^o}2HCl\)

\(Fe+2HCl\rightarrow FeCl_2+H_2\)

\(2FeCl_2+Cl_2\underrightarrow{t^o}2FeCl_3\)

\(FeCl_3+3NaOH\rightarrow3NaCl+Fe\left(OH\right)_3\)

a_ \(2HCl-^{đpdd}\rightarrow Cl_2+H_2\)

\(\dfrac{3}{2}Cl_2+Fe-^{t^o}\rightarrow FeCl_3\)

\(FeCl_3+3NaOH\rightarrow Fe\left(OH\right)_3+3NaCl\)

\(NaCl_{\left(r,k\right)}+H_2SO_{4\left(đ,n\right)}-^{t^o}\rightarrow NaHSO_4+HCl\)

\(2HCl+CuO\rightarrow CuCl_2+H_2O\)

\(CuCl_2+2AgNO_3\rightarrow Cu\left(NO_3\right)_2+2AgCl\)

a_ 2HCl−đpdd→Cl2+H22HCl−đpdd→Cl2+H2

\(2KMnO_4+16HCl_đ-^{t^o}\rightarrow2KCl+2MnCl_2+5Cl_2+8H_2O\)

\(Cl_2+H_2-^{as}\rightarrow2HCl\)

\(6HCl+Fe_2O_3\rightarrow2FeCl_3+3H_2O\)

\(FeCl_3+3AgNO_3\rightarrow Fe\left(NO_3\right)_3+3AgCl\)

\(2AgCl-^{t^o}\rightarrow2Ag+Cl_2\)

\(Cl_2+2NaBr\rightarrow2NaCl+Br_2\)

\(Br_2+2NaI\rightarrow2NaBr+I_2\)

\(I_2+Zn-^{t^o}\rightarrow ZnI_2\)

\(ZnI_2+2NaOH_{\left(vđ\right)}\rightarrow Zn\left(OH\right)_2+2NaI\)

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)

câu c

1,

\(4HCl+MnO_2\rightarrow MnCl_2+2H_2O+Cl_2\\ 2Fe+3Cl_2\underrightarrow{t^o}2FeCl_3\\ FeCl_3+3NaOH\rightarrow Fe\left(OH\right)_3\downarrow+3NaCl\\ 2NaCl+H_2SO_4\rightarrow Na_2SO_4+2HCl\uparrow\\ CuO+2HCl\rightarrow CuCl_2+H_2O\\ CuCl_2+2AgNO_3\rightarrow2AgCl\downarrow+Cu\left(NO_3\right)_2\)

2,

\(2KMnO_4+16HCl\rightarrow2KCl+8H_2O+5Cl_2+2MnCl_2\\ Cl_2+H_2\underrightarrow{as}2HCl\\ 6HCl+Fe_2O_3\rightarrow2FeCl_3+3H_2O\\ FeCl_3+3AgNO_3\rightarrow3AgCl\downarrow+Fe\left(NO_3\right)_3\\ 2AgCl\underrightarrow{as}2Ag+Cl_2\\ Cl_2+2NaBr\rightarrow2NaCl+Br_2\\ Br_2+2NaI\rightarrow2NaBr+I_2\)

3,

2 pthh đầu giống ở 2

\(Fe+2HCl\rightarrow FeCl_2+H_2\\ FeCl_2+2AgNO_3\rightarrow2AgCl\downarrow+Fe\left(NO_3\right)_2\\ 2AgCl\underrightarrow{as}2Ag+Cl_2\)

4, 2 pthh đầu gióng ở 1

\(FeCl_3+3NaOH\rightarrow Fe\left(OH\right)_3\downarrow+3NaCl\\ 2Fe\left(OH\right)_3+3H_2SO_4\rightarrow Fe_2\left(SO_4\right)_3+6H_2O\)

a)

\(4HCl+MnO_2\rightarrow MnCl_2+Cl_2+2H_2O\\ 3Cl_2+2Fe\xrightarrow[]{t^o}2FeCl_3\\ FeCl_3+3NaOH\rightarrow Fe\left(OH\right)_3+3NaCl\\ 2NaCl+H_2SO_{4\left(\text{đ}\right)}\xrightarrow[]{t^o}Na_2SO_4+2HCl\)

b)

\(2KMnO_4+16HCl\rightarrow2KCl+2MnCl_2+5Cl_2+8H_2O\\ Cl_2+H_2\xrightarrow[]{a/s}2HCl\\ 6HCl+Fe_2O_3\rightarrow2FeCl_3+3H_2O\\ FeCl_3+3AgNO_3\rightarrow Fe\left(NO_3\right)_3+3AgCl\)

c)

\(MnO_2+4HCl\rightarrow MnCl_2+Cl_2+2H_2O\\ Cl_2+H_2\xrightarrow[]{a/s}2HCl\\ 2HCl+Fe\rightarrow FeCl_2+H_2\\ FeCl_2+2AgNO_3\rightarrow Fe\left(NO_3\right)_2+2AgCl\)

d)

\(3Cl_2+6KOH_{\left(\text{đ}\text{ặ}c\right)}\xrightarrow[]{t^o}5KCl+KClO_3+3H_2O\\ 2KClO_3\xrightarrow[MnO_2]{t^o}2KCl+3O_2\\ 2KCl\xrightarrow[]{\text{đ}pnc}2K+Cl_2\\ Cl_2+Ca\xrightarrow[]{t^o}CaCl_2\)

e)

\(2KMnO_4+16HCl\rightarrow2KCl+2MnCl_2+5Cl_2+8H_2O\\ 3Cl_2+6KOH_{\left(\text{đ}\text{ặ}c\right)}\xrightarrow[]{t^o}5KCl+KClO_3+3H_2O\\ 2KClO_3\xrightarrow[MnO_2]{t^o}2KCl+3O_2\\ 2KCl\xrightarrow[]{\text{đ}pnc}2K+Cl_2\)

g)

\(2KI+O_3+H_2O\rightarrow2KOH+I_2+O_2\\ I_2+H_2\xrightarrow[]{t^o,p,xt}2HI\\ 2HI+Cl_2\rightarrow2HCl+I_2\\ KOH+HCl\rightarrow KCl+H_2O\)

2) 2KMnO4 + 16HCl = 2KCl + 2MnCl2 + 5Cl2 + 8H2O

Cl2 + H2 = 2HCl ( điều kiện ánh sáng )

2HCl + Fe = FeCl2 + H2

FeCl2 + 2AgNO3 = 2AgCl + Fe(NO3)2

2AgCl = 2Ag + Cl2

10. MnO2 + 4HCl = MnO2 + Cl2 + H2O (nhiệt độ)

3Cl2 + 6KOH(đặc) = 5KCl + KClO3 + 3H2O(nhiệt độ)

KClO3 = KCl + 3O2(nhiệt độ)

KCl(rắn) + H2SO4 = 2HCl + K2SO4 (nhiệt độ)

4HCl + MnO2 = MnO2 + Cl2 + H2O(nhiệt độ)

Cl2 + Ca(OH)2 = CaOCl2 + H2O

a. NaCl → Cl₂ → FeCl₃ → NaCl → HCl → CuCl₂ → AgCl.

2NaCl+2H2O-đp\mn->2NaOH+H2+Cl2

3Cl2+2Fe-to>2FeCl3

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

2NaCl+H2SO4-to>Na2SO4+2HCl

2HCl+CuO->CuCl2+H2O

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

b. CaCO₃ → CaCl₂ → NaCl → NaOH → NaClO → NaCl → Cl₂ → FeCl₃ → AgCl

CaCO3+2HCl->CaCl2+H2O+CO2

CaCl2+Na2CO3->2NaCl+CaCO3

2NaCl+2H2o-đp->2NaOH+Cl2+H2

2NaOH+Cl2-to>NaCl+NaClO+H2O

2NaClO-to->2NaCl+O2

2NaCl+2H2O-đp\mn->2NaOH+H2+Cl2

3Cl2+2Fe-to>2FeCl3

FeCl3+3AgNO3->3AgCl+Fe(NO3)3