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

Tự cân bằng nhá!
a,

\(HCl+MnO_2\rightarrow MnCl_2+Cl_2+H_2O\\ Cl_2+Fe\rightarrow FeCl_3\\ FeCl_3+NaOH\rightarrow Fe\left(OH\right)_3+NaCl\\ NaCl+H_2SO_{4\left(dn\right)}\rightarrow Na_2SO_4+HCl\\ HCl+CuO\rightarrow CuCl_2+H_2O\\ CuCl_2+AgNO_3\rightarrow Cu\left(NO_3\right)_2+AgCl\)
b,

\(KMnO_4+HCl\rightarrow KCl+MnCl_2+Cl_2+H_2O\\ Cl_2+H_2\rightarrow HCl\\ HCl+Fe\left(OH\right)_3\rightarrow FeCl_3+H_2O\\ FeCl_3+AgNO_3\rightarrow Fe\left(NO_3\right)_3+AgCl\\ AgCl-as,t^o->Ag+Cl_2\\ Cl_2+NaBr\rightarrow NaCl+Br_2\\ Br_2+NaI\rightarrow NaBr+I_2\)

c, Giống câu b 3 pt đầu
\(HCl+Fe\left(OH\right)_2\rightarrow FeCl_2+H_2O\\ FeCl_2+AgNO_3\rightarrow Fe\left(NO_3\right)_2+AgCl\\ AgCl-as,t^o->Ag+Cl_2\)
d,

\(HCl+MnO_2\rightarrow MnCl_2+Cl_2+H_2O\\ Cl_2+Fe\rightarrow FeCl_3\\ FeCl_3+NaOH\rightarrow Fe\left(OH\right)_3+NaCl\\ Fe\left(OH\right)_3+H_2SO_4\rightarrow Fe_2\left(SO_4\right)_3+H_2O\)
e,

\(HCl+MnO_2\rightarrow MnCl_2+Cl_2+H_2O\\ Cl_2+NaOH\rightarrow NaCl+NaClO+H_2O\\ NaCl+H_2SO_{4\left(dn\right)}\rightarrow Na_2SO_4+HCl\\ CuO+HCl\rightarrow CuCl_2+H_2O\\ CuCl_2+AgNO_3\rightarrow Cu\left(NO_3\right)_2+AgCl\\ AgCl-as,t^o->Ag+Cl_2\)
f,

\(MnO_2+HCl\rightarrow MnCl_2+Cl_2+H_2O\\ Cl_2+KOH-t^o->KClO_3+KCl+H_2O\\ KClO_3\rightarrow KCl+O_2\\ KCl+H_2SO_{4\left(dn\right)}\rightarrow K_2SO_4+HCl\\ HCl+MnO_2\rightarrow MnCl_2+Cl_2+H_2O\\ Ca\left(OH\right)_2+Cl_2\rightarrow CaCl_2+Ca\left(ClO\right)_2+H_2O\)

điều kiện lun nha mn

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

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

b)

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

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

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

1/

MnO₂+ 4HCl\(\rightarrow\) MnCl₂+ Cl₂+ 2H₂O

Cl₂+H₂\(\xrightarrow[]{as}\) 2HCl

HCl+ NaOH\(\rightarrow\) NaCl+ H₂O

2NaCl\(\xrightarrow[]{đpnc}\) 2Na+ Cl₂

Cl₂+ SO₂+ 2H₂O\(\rightarrow\) H₂SO₄+ 2HCl

H₂SO_{4 đặc}+ NaCl_{tinh thể}\(\xrightarrow[]{< 250\cdot C}\) NaHSO₄+ HCl

4/

H₂SO_{4 đặc}+ NaCl_{tinh thể}\(\xrightarrow[]{< 250\cdot C}\) NaHSO₄+ HCl

MnO₂+ 4HCl\(\rightarrow\) MnCl₂+ Cl₂+ 2H₂O

3Cl₂+ 6KOH_đặc\(\rightarrow\) KClO₃+ 5KCl+ 3H₂O

2KClO₃\(\xrightarrow[MnO2]{to}\) 2KCl+ 3O₂

2KCl\(\xrightarrow[]{đpnc}\) K+ Cl₂

Cl₂+ Ca(OH)₂\(\xrightarrow[]{30\cdot C}\) CaOCl₂+ H₂O

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

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

\(HCl+NaOH\rightarrow NaCl+H_2O\)

\(2NaCl+2H_2O\xrightarrow[cmn]{đpdd}2NaOH+Cl_2+H_2\)

\(4Cl_2+4H_2O+H_2S\rightarrow H_2SO_4+8HCl\)

\(H_2SO_4+NaCl\underrightarrow{>400^oC}Na_2SO_4+HCl\uparrow\)

2, \(2KMnO_4+18HCl\rightarrow2KCl+2MnCl_2+5Cl_2+8H_2O\)

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

\(FeCl_3+3KOH\rightarrow Fe\left(OH\right)_3\downarrow+3KCl\)

\(2KCl+2H_2O\xrightarrow[cmn]{đpdd}2KOH+Cl_2+H_2\)

3, \(4HCl+MnO_2\underrightarrow{t^o}MnCl_2+Cl_2+2H_2O\)

\(3Cl_2+2Fe\underrightarrow{t^o}2FeCl_3\)\(FeCl_3+3NaOH\rightarrow3NaCl+Fe\left(OH\right)_3\downarrow\)

\(2NaCl+H_2SO_4\underrightarrow{>400^oC}Na_2SO_4+2HCl\)

\(2HCl+Cu\left(OH\right)_2\rightarrow CuCl_2+2H_2O\)

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

4, \(H_2SO_4+2NaCl\underrightarrow{>400^oC}Na_2SO_4+2HCl\uparrow\)

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

\(3Cl_2+6KOH\underrightarrow{80-100^oC}5KCl+KClO_3+3H_2O\)

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

\(2KCl+2H_2O\xrightarrow[cmn]{đpdd}2KOH+Cl_2+H_2\)

\(Cl_2+Ca\left(OH\right)_2\underrightarrow{30^oC}CaOCl_2+H_2O\)

Bạn tham khảo nhé!

1.

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

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

\(NaOH+HCl\rightarrow NaCl+H_2O\)

\(2NaCl\underrightarrow{^{đpnc}}2Na+Cl_2\)

\(Cl_2+SO_2+2H_2O\rightarrow2HCl+H_2SO_4\)

\(NaCl+H_2SO_{4_đ}\underrightarrow{^{to}}NaHSO_4+HCl\)

2.

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

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

\(FeCl_3+3KOH\rightarrow Fe\left(OH\right)_3+3KCl\)

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

3.

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

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

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

\(NaCl+H_2SO_{4_Đ}\underrightarrow{^{to}}NaHSO_4+HCl\)

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

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

4.

\(NaCl+H_2SO_{4_Đ}\underrightarrow{^{to}}NaHSO_4+HCl\)

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

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

\(KClO_3+6HCl\rightarrow KCl+3Cl_2+3H_2O\)

\(Cl_2+CaO\underrightarrow{^{to}}CaOCl_2\)

Phản ứng D nha

SO2 + H2S → S + H2O

H2S + HNO3 → H2SO4 + NO2 + H2O

H2SO4 + BaCl2 → BaSO4 + HCl

HCl + MnO2 → MnCl2 + Cl2 + H2O

Cl2 + NaOH → NaCl + NaClO + H2O