Bài 1: Hoàn thành các phương trình phản ứng hóa học theo sơ đồ chuyển hóa sau:
1. MnO2 → Cl2 → HCl → NaCl → Cl2 → H2SO4 → HCl
2. KMnO4 → Cl2 → KClO3 → Cl2 → FeCl3 → KCl → KOH
3. BaCl2 → Cl2 → HCl → FeCl2 → FeCl3 → BaCl2 → HCl
4. C2H2 → HCl → CuCl2 → KCl → KOH → KClO3 → Cl2
5. HCl → Cl2 → FeCl3 → NaCl → HCl → CuCl2 → AgCl
6. NaCl → HCl → Cl2 → KClO3 → KCl → Cl2 → CaOCl2
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 :((
