Thực hiện các chuyển đổi sau đây: \(CaC_2\rightarrow C_2H_2\rightarrow C_2H_4\rightarrow C_2H_4Br_2\rightarrow C_2H_4\left(OH\right)_2\)
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![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(CaC_2+2H_2O\rightarrow Ca\left(OH\right)_2+C_2H_2\)
\(C_2H_2+H_2\underrightarrow{^{Pd\text{/}PbCO_3,t^0}}C_2H_4\)
\(C_2H_4+H_2\underrightarrow{^{Ni,t^0}}C_2H_6\)
\(C_2H_6+Cl_2\underrightarrow{askt}C_2H_5Cl+HCl\)
![](https://rs.olm.vn/images/avt/0.png?1311)
1/ C2H4 + H2O => (140o,H2SO4đ) C2H5OH
C2H5OH + O2 => (men giấm) CH3COOH + H2O
CH3COOH + C2H5OH => (H2SO4đ,to) <pứ hai chiều> CH3COOC2H5 + H2O
CH3COOC2H5 + NaOH => (to) CH3COONa + C2H5OH
2/ C6H12O6 => (men rượu,to) 2CO2 + 2C2H5OH
C2H5OH + O2 => (men giấm) CH3COOH + H2O
2CH3COOH + CaCO3 => (CH3COO)2Ca + CO2 + H2O
3/ CaC2 + 2H2O => Ca(OH)2 + C2H2
C2H2 + H2 => (Pd, to) C2H4
C2H4 + 1/2 O2 => (xt,P,to) CH3CHO
CH3CHO + 1/2 O2 => CH3COOH
![](https://rs.olm.vn/images/avt/0.png?1311)
\(a)\)
\(C_2H_4+H_2O\xrightarrow[t^o]{Axit}C_2H_5OH\)
\(C_2H_5OH+O_2\underrightarrow{lên-men-giâm}CH_3COOH+H_2O\)
\(2CH_3COOH+CuO--->\left(CH_3COO\right)_2Cu+H_2O\)
\(b)\)
\(CaC_2+2H_2O--->Ca\left(OH\right)_2+C_2H_2\)
\(C_2H_2+2H_2\xrightarrow[Ni]{t^o}C_2H_6\)
\(C_2H_6+Cl_2\xrightarrow[anh-sang]{t^o}C_2H_5Cl+HCl\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(MgSO_4+BaCl_2\rightarrow MgCl_2+BaSO_4\)
\(MgCl_2+2KOH\rightarrow Mg\left(OH\right)_2+2KCl\)
\(Mg\left(OH\right)_2\underrightarrow{t^o}MgO+H_2O\)
\(MgO+2HNO_3\rightarrow Mg\left(NO_3\right)_2+H_2O\)
\(Mg\left(NO_3\right)_2+K_2CO_3\rightarrow2KNO_3+MgCO_3\)
\(MgCO_3+2HCl\rightarrow MgCl_2+H_2O+CO_2\)
\(MgCl_2+2KOH\rightarrow Mg\left(OH\right)_2+2KCl\)
![](https://rs.olm.vn/images/avt/0.png?1311)
2Cu + O2 ➝ 2CuO
CuO + H2SO4 ➝ CuSO4 + H2O
CuSO4 + BaCl2 ➝ CuCl2 + BaSO4↓
CuCl2 + 2AgNO3 ➝ Cu(NO3)2 + 2AgCl↓
Cu(NO3)2 +2NaOH➝Cu(OH)2↓+ 2NaNO3
Cu(OH)2 \(\underrightarrow{t^o}\)CuO + H2O
CuO + H2 ➝ Cu + H2O
Cu + 2H2SO4(đ) \(\xrightarrow[]{t^o}\) CuSO4 + SO2 + 2H2O
CuSO4 + Fe ➝ Cu + FeSO4
Cu + 2H2SO4(đ) \(\xrightarrow[]{t^o}\) CuSO4 + SO2 + 2H2O
![](https://rs.olm.vn/images/avt/0.png?1311)
\(Fe\left(OH\right)_2+2HCl\rightarrow FeCl_2+2H_2O\\ 2FeCl_2+Cl_2\rightarrow2FeCl_3\)
![](https://rs.olm.vn/images/avt/0.png?1311)
3Fe + 2O2 ➝ Fe3O4
Fe3O4 + 8HCl ➝ FeCl2 + 2FeCl3 + 4H2O
2FeCl2 + Cl2 ➝ 2FeCl3
FeCl3 + 3AgNO3 ➝ Fe(NO3)3 + 3AgCl↓
Fe(NO3)3 + 3NaOH ➝Fe(OH)3 + 3NaNO3
2Fe(OH)3 \(\underrightarrow{t^o}\) Fe2O3 + 3H2O
![](https://rs.olm.vn/images/avt/0.png?1311)
a) SO2 + Na2O -> Na2SO3
Na2SO3 + H2SO4 -> Na2SO4 + SO2 + H2O
Na2SO4 + Ba(OH)2 -> BaSO4 \(\downarrow\)+ 2NaOH
2NaOH + CO2 -> Na2CO3 + H2O
b) CaO + CO2 -> CaCO3
CaCO3 \(\rightarrow^{t^o}\) CaO + CO2
CaO + H2O -> Ca ( OH)2
Ca ( OH)2 + CO2 -> CaCO3 + H2O
CaCO3 + H2SO4 -> CaSO4 + CO2 + H2O
c) 2Fe + 3Cl2 \(\rightarrow^{t^o}\) 2FeCl3
FeCl3 + 3NaOH -> Fe(OH)3 \(\downarrow\) + 3NaCl
2Fe(OH)3 \(\rightarrow^{t^o}\) Fe2O3 + 3H2O
Fe2O3 + 3H2SO4 -> Fe2(SO4)3 + 3H2O
Fe2(SO4)3 + 3BaCl2 -> 2FeCl3 + 3BaSO4\(\downarrow\)
d) Fe + 2HCl -> FeCl2 + H2
FeCl2 + 2AgNO3 -> 2AgCl\(\downarrow\) + Fe(NO3)2
Fe(NO3)2 + 2NaOH -> Fe(OH)2\(\downarrow\) + 2NaNO3
Fe(OH)2 + H2SO4 -> FeSO4 + 2H2O
+) \(CaC_2+2H_2O\rightarrow C_2H_2+Ca\left(OH\right)_2\)
+) \(C_2H_2+H_2\rightarrow C_2H_4\)
+) \(C_2H_4+Br_2\rightarrow C_2H_4Br_2\)
+) \(C_2H_4Br_2+2H_2O\rightarrow C_2H_4\left(OH\right)_2+2HBr\)
Ở pthh 2 thiếu đk: \(C_2H_2+H_2\underrightarrow{t^o,Pd}C_2H_4\)