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

 

 

 

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

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

\(H_2 + Cl_2 \xrightarrow{ánh\ sáng} 2HCl\\ Fe + 2HCl \to FeCl_2 + H_2\\ 2FeCl_2 + Cl_2 \to 2FeCl_3\\ FeCl_3 + 3KOH \to Fe(OH)_3 + 3KCl\\ Fe(OH)_3 + 3HCl \to FeCl_3 + 3H_2O\\ 4HCl + MnO_2 \to MnCl_2 + Cl_2 + 2H_2O\\ \)

\(2NaOH + Cl_2 \to NaCl + NaClO + H_2O\\ NaCl + H_2SO_4 \xrightarrow{t^o} NaHSO_4 + HCl\\ CuO + 2HCl \to CuCl_2 + H_2O\\ CuCl_2 + 2AgNO_3 \to Cu(NO_3)_2 + 2AgCl\)

1.

Cl2 + H2O <->HCl + HClO2HCl + Fe -> FeCl2 + H22FeCl2 + Cl2 -to> 2FeCl3FeCl3 + NaOH -> Fe(OH)3 + NaCl

2Fe(OH)3+6HCl->2FeCl3+3H2O

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

Cl2+2Na-to>2NaCl

2NaCl+2H2SO4đ-to>Na2SO4+2HCl

HCl+CuO->CuCl2+H2O

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

 

 

a, Cl2 + 2Na -> (t°) 2NaCl

2NaCl + H2SO4 -> Na2SO4 + 2HCl

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

Ca + Cl2 -> (t°) CaCl2

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

2Fe + 3Cl2 -> (t°) 2FeCl3

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

2NaCl + H2SO4 -> Na2SO4 + 2HCl

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

3Cl2 + 6KOH (đặc nóng) -> 5KCl + KClO3 + 3H2O 

2KCl + H2SO4 -> K2SO4 + 2HCl

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

2Cl2 + 2Ca(OH)2 -> CaCl2 + Ca(OCl)2 + 2H2O

d, 16HCl + 2KMnO4 -> 5Cl2 + 8H2O + 2KCl + 2MnCl2

3Cl2 + 6KOH (đặc nóng) -> 5KCl + KClO3 + 3H2O

2KCl -> (đpnc) 2K + Cl2

Cl2 + 2NaBr -> 2NaCl + Br2

Br2 + 2NaI -> 2NaBr + I2

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

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

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

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

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

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

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

câu c

$a) MnO_2 + 4HCl \xrightarrow{t^o} MnCl_2 + Cl_2 + 2H_2O$
$Cl_2 + Cu \xrightarrow{t^o} CuCl_2$

$CuCl_2 + 2NaOH \to Cu(OH)_2 + 2NaCl$
$2NaCl + 2H_2O \xrightarrow{đpdd, cmn} 2NaOH + H_2 + Cl_2$
$2NaOH + Cl_2 \to NaCl + NaClO + H_2O$
$NaClO + HCl \to NaCl + HClO$

b)

$2KMnO_4 + 16HCl \to 2KCl + 2MnCl_2 + 5Cl_2 + 8H_2O$
$Cl_2 + H_2 \xrightarrow{ánh\ sáng} 2HCl$
$HCl + KOH \to KCl + H_2O$

$2KCl + 2H_2O \xrightarrow{đpdd, cmn} 2KOH + H_2 + Cl_2$
$3Cl_2 + 2Fe \xrightarrow{t^o} 2FeCl_3$

$FeCl_3 + 3AgNO_3 \to Fe(NO_3)_3 + 3AgCl$

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