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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)
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
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
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)
\(MnO_2+4HCl\rightarrow MnCl_2+Cl_2+2H_2O\)
\(2Fe+3Cl_2\underrightarrow{t^o}2FeCl_3\)
\(FeCl_3+3NaOH\rightarrow Fe\left(OH\right)_3\downarrow+3NaCl\)
\(2NaCl+H_2SO_4\underrightarrow{t^o}Na_2SO_4+2HCl\)
\(CuO+2HCl\rightarrow CuCl_2+H_2O\)
\(CuCl_2+2AgNO_3\rightarrow Cu\left(NO_3\right)_2+2AgCl\downarrow\)
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)
\(MnO_2+4HCl\rightarrow MnCl_2+Cl_2+2H_2O\)
\(3Cl_2+6KOH\underrightarrow{t^o}5KCl+KClO_3+3H_2O\)
\(2KClO_3\underrightarrow{t^o}2KCl+3O_2\)
\(2KCl+H_2SO_4\underrightarrow{t^o}K_2SO_4+2HCl\)
\(2KMnO_4+16HCl\rightarrow2KCl+2MnCl_2+5Cl_2+8H_2O\)
\(Ca\left(OH\right)_2+Cl_2\rightarrow CaOCl_2+H_2O\)
1.
\(MnO_2+4HCl\rightarrow MnCl_2+Cl_2+2H_2O\)
\(H_2+Cl_2\underrightarrow{^{as}}2HCl\)
\(NaOH+HCl\rightarrow NaCl+H_2O\)
\(2NaCl\underrightarrow{^{đpnc}}2Na+Cl_2\)
\(4Cl_2+H_2S+4H_2O\rightarrow8HCl+H_2SO_4\)
\(NaCl+H_2SO_4\rightarrow NaHSO_4+HCl\)
2.
\(2KMnO_4+16HCl\rightarrow2KCl+2MnCl_2+5Cl_2+8H_2O\)
\(6KOH+3Cl_2\rightarrow5KCl+KClO_3+3H_2O\)
\(KClO_3+6HCl\rightarrow KCl+3Cl_2+3H_2O\)
\(Fe+\frac{3}{2}Cl_2\underrightarrow{^{to}}FeCl_3\)
\(FeCl_3+3KOH\rightarrow Fe\left(OH\right)_3+3KCl\)
\(2KCl+2H_2O\underrightarrow{^{đpmn}}2KOH+Cl_2+H_2\)
3.
\(BaCl_2\underrightarrow{^{đpnc}}Ba+Cl_2\)
\(Cl_2+H_2\underrightarrow{^{as}}2HCl\)
\(Fe+2HCl\rightarrow FeCl_2+H_2\)
\(2FeCl_2+3Cl_2\rightarrow2FeCl_3\)
\(3Ba\left(OH\right)_2+2FeCl_3\rightarrow3BaCl_2+2Fe\left(OH\right)_3\)
\(BaCl_2+H_2SO_4\rightarrow BaSO_4+2HCl\)
4.
\(C_2H_2+Cl_2\rightarrow2C+2HCl\)
\(CuO+2HCl\rightarrow CuCl_2+H_2O\)
\(CuCl_2+2KOH\rightarrow Cu\left(OH\right)_2+2KCl\)
\(2KCl+2H_2O\underrightarrow{^{đpmn}}2KOH+H_2+Cl_2\)
\(3Cl_2+6KOH\rightarrow5KCl+KClO_3+3H_2O\)
\(KClO_3+6HCl\rightarrow KCl+3Cl_2+3H_2O\)
5.
\(MnO_2+4HCl\rightarrow MnCl_2+Cl_2+2H_2O\)
\(2Fe+3Cl_2\rightarrow2FeCl_3\)
\(FeCl_3+3NaOH\rightarrow Fe\left(OH\right)_3+3NaCl\)
\(NaCl+H_2SO_4\rightarrow NaHSO_4+HCl\)
\(CuO+2HCl\rightarrow CuCl_2+H_2O\)
\(CuCl_2+AgNO_3\rightarrow Cu\left(NO_3\right)_2+2AgCl\)
6.
\(NaCl+H_2SO_4\rightarrow NaHSO_4+HCl\)
\(MnO_2+4HCl\rightarrow MnCl_2+Cl_2+H_2O\)
\(6KOH+3Cl_2\rightarrow5KCl+KClO_3+3H_2O\)
\(KClO_3+6HCl\rightarrow KCl+3Cl_2+3H_2O\)
\(2KCl\underrightarrow{^{đpnc}}2K+Cl_2\)
\(Cl_2+Ca\left(OH\right)_2\rightarrow CaOCl_2+H_2O\)
1. MnO2 +4HCl→ Cl2+MnCl2+4H2O
Cl2+2H2→ 2HCl
HCl+Na2O→ NaCl+H2O
2NaCl → Cl2+2Na
2Cl2+2H2O+CO2→ H2SO4 +4HCl
H2SO4+BaCl2→ 2HCl+BaSO4
2. 2KMnO4 +16HCl→ 5Cl2+8H2O+2KCl+2MnCl2
2Cl2+6KOH→ KClO3 +5KCl+3H2O
KClO3+6HCl→ 3Cl2+KCl+3H2O
3Cl2+2Fe→2 FeCl3
FeCl3+3KOH→ 3KCl +Fe(OH)3
2KCl+2H2O→ KOH+Cl2+2H2O
3. BaCl2 → Cl2+Ba
Cl2+2H2→ 2HCl
2HCl+Fe→ FeCl2+H2
2FeCl2+Cl2→ 2FeCl3
2FeCl3+3Ba(OH)2→ 3BaCl2+2Fe(OH)3
BaCl2+H2SO4→ 2HCl+BaSO4
Mỏi tay rồi :((
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)
\(2KI+O_3+H_2O\rightarrow2KOH+I_2+O_2\\ I_2+H_2\xrightarrow[]{t^o,p,xt}2HI\\ 2HI+Cl_2\rightarrow2HCl+I_2\\ KOH+HCl\rightarrow KCl+H_2O\)
Em comment thêm 1 cái nhé, câu trả lời được 2GP á.
Mình làm câu 2 nhé:
Cho thử quỳ tím:
- Quỳ tím chuyển đỏ -> H2SO4, HCl (1)
- Quỳ tím chuyển xanh -> NaOH
- Quỳ tím không đổi màu -> NaCl, NaI, NaBr (2)
Cho lần lượt các chất (1) tác dụng với BaCl2:
- Xuất hiện kết tủa trắng -> H2SO4
BaCl2 + H2SO4 -> BaSO4 + 2HCl
- Không hiện tượng -> HCl
Cho lần lượt các chất (2) tác dụng với AgNO3:
- Kết tủa màu trắng -> AgCl
NaCl + AgNO3 -> AgCl + NaNO3
- Kết tủa màu vàng nhạt -> NaBr
NaBr + AgNO3 -> NaNO3 + AgBr
Kết tủa màu vàng đậm -> NaI
NaI + AgNO3 -> AgI + NaNO3
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. 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