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![](https://rs.olm.vn/images/avt/0.png?1311)
\(NaCl+H_2O\xrightarrow[cmn]{đpdd}NaOH+\dfrac{1}{2}H_2+\dfrac{1}{2}Cl_2\) (1)
\(H_2+Cl_2\underrightarrow{as}2HCl\)
\(2FeS_2+\dfrac{11}{2}O_2\underrightarrow{t^o}Fe_2O_3+4SO_2\)
\(SO_2+\dfrac{1}{2}O_2\xrightarrow[V_2O_5]{450^oC}SO_3\)
\(SO_3+H_2O\rightarrow H_2SO_4\)
\(4Al+3C\underrightarrow{1500-1700^oC}Al_4C_3\)
Điều chế \(FeCl_3\):
\(Fe_2O_3+6HCl\rightarrow2FeCl_3+3H_2O\)
Điều chế \(Fe_2\left(SO_4\right)_3\):
\(Fe_2O_3+3H_2SO_4\rightarrow Fe_2\left(SO_4\right)_3+3H_2O\)
Điều chế \(Al\left(OH\right)_3\):
\(Al_4C_3+12H_2O\rightarrow4Al\left(OH\right)_3+3CH_4\)
![](https://rs.olm.vn/images/avt/0.png?1311)
*điều chế FeSo4
4FeS2 + 11O2 => 2Fe2O3 + 8SO2
2SO2 + O2 => 2SO3
SO3 + H2O => H2SO4
FeS2 + H2SO4 => FeSO4 + S + H2S
*điều chế Fe(OH)3
2NaCl + 2H2O => 2NaOH + Cl2 + H2
Fe2O3 + 3H2SO4 => Fe2(SO4)3 + 3H2O
Fe2(SO4)3 + 6NaOH => 3Na2SO4 + 2Fe(OH)3
*điều chế NaHSO4
NaOH + H2SO4 => NaHSO4 + H2O
![](https://rs.olm.vn/images/avt/0.png?1311)
+\(CH_4\) \(\underrightarrow{1500^oC}\) \(C_2H_2+H_2\)
\(C_2H_2+H_2\) \(\underrightarrow{Pd\text{/}PbCO_3,t^o}\) \(C_2H_4\)
\(C_2H_4\)\(+H_2O\) \(\underrightarrow{xt,t^o}\) \(C_2H_5OH\)
\(2C_2H_5OH+O_2\) \(\underrightarrow{men,t^o}\) \(2CH_3COOH\)
\(C_2H_5OH\) \(+CH_3COOH\) \(\underrightarrow{H_2SO_4,t^o}\) \(CH_3COOC_2H_5+H_2O\)
+\(C_2H_2+HCl\) \(\underrightarrow{xt,t^o}\) \(CH_2=CHCl\)
\(nCH_2=CHCl\) \(\underrightarrow{xt,p,t^o}\) \(\left(-CH_2-CHCl-\right)_n\)
a, - C2H2Br4:
\(CaC_2+2H_2O\rightarrow Ca\left(OH\right)_2+C_2H_2\\ C_2H_2+2Br_2\rightarrow C_2H_2Br_4\)
- PE:
\(2H_2O\underrightarrow{\text{điện phân}}2H_2+O_2\\ C_2H_2+H_2\xrightarrow[t^o]{Pd}C_2H_4\)
b, - C2H4:
\(CH_3-CH_2-OH\xrightarrow[H_2SO_4]{t^o}CH_2=CH_2+H_2O\)
- C2H2:
\(CH_3COONa+C_2H_5OH\rightarrow CH_3COOC_2H_5+NaOH\\ NaOH+CH_3COONa\xrightarrow[CaO]{t^o}Na_2CO_3+CH_4\\ 2CH_4\xrightarrow[\text{làm lạnh nhanh}]{t^o}C_2H_2+3H_2\)