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(1) \(2CH_4\rightarrow C_2H_2+2H_2\)
(2) \(C_2H_2+H_2\rightarrow C_2H_4\)
(3) \(C_2H_4+H_2O\rightarrow C_2H_5OH\)
(4) \(C_2H_4+H_2\rightarrow C_2H_6\)
(5) \(C_2H_6+Cl_2\rightarrow HCl+C_2H_5Cl\)
(6) \(3C_2H_2\rightarrow C_6H_6\)
(7) \(C_6H_6+Br_2\rightarrow HBr+C_6H_5Br\)
(8) \(2C_6H_6+15O_2\rightarrow12CO_2+6H_2O\)
\(Ca+2C\underrightarrow{t^o}CaC_2\\ CaC_2+2H_2O\rightarrow C_2H_2+2H_2O\\ C_2H_2+2Br_2\rightarrow C_2H_2Br_4\)
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\(MnO_2+4HCl\rightarrow MnCl_2+2H_2O+Cl_2\\ 2Fe+3Cl_2\underrightarrow{t^o}2FeCl_3\\ 2FeCl_3\underrightarrow{đpnc}2Fe+3Cl_2\)
\(CaC_2+2H_2O\rightarrow Ca\left(OH\right)_2+C_2H_2\)
\(C_2H_2+H_2\underrightarrow{t^o,Pd}C_2H_4\)
\(nCH_2=CH_2\underrightarrow{^{t^o,p,xt}}\left(-CH_2-CH_2-\right)_n\)
\(C_2H_4+Br_2\rightarrow C_2H_4Br_2\)
hoàn thành chuỗi phản ứng
CH4---> C2H2--->C2H6--->C2H5Cl;
2CH4-1500độ\làm lạnh->C2H2+H2
C2H2+2H2-to>C2H6
C2H6+Cl2-to>C2H5Cl+HCl
CO2--->Ca(OH)2
=>Ko có pứ
2CH4 -> (làm lạnh) C2H2 + 3H2
C2H2 + 2H2 -> C2H6
C2H6 + Cl2 -> C2H5Cl + HCl
CO2 không thể ra Ca(OH)2 được
: a) CaCO3, CaO, CaC2, C2H2, C2H4, C2H6, CO2, CO
=> CaCO3-->CaO+CO2
CaO+C-->CaC2+CO
CaC2+H2O-->Ca(OH)2+C2H2
C2H2+H2-->C2H4
C2H4+H2-->C2H6
C2H6+O2-->CO2+H2O
CO2+C-->CO
C)Al+Cl2-->AlCl3
AlCl3+NaoH-->Al(OH)3+NaCl
Al(OH)3-->Al2O3+H2O
Al2o3+C-->Al4C3+CO
Al4C3+H2O-->Al(OH)3+CH4
CH4+H2-->C2H2
a) CaCO3--to-->CaO+CO2
CaO+2C--->CaC+CO
2CaC+2H2O--->Ca(OH)2+C2H2
C2H2+H2--to->C2H4
C2H4+H2--->C2H6
C2H6+7/2O2-->2CO2+3H2O
CO2+C---to->2CO
b) C2H6+Cl2-->C2H5Cl+HCl
C2H5Cl-->C2H4+HCl
C2H4+Br2--->C2H4Br2
C2H4Br+2NaOH-->C2H4(OH)2+2NaBr
c) 2Al+6HCl-->AlCl3+3H2
AlCl3+3NaOH-->Al(OH)3+3NaCl
2Al(OH)3-->Al2O3+3H2O
2Al2O3+9C--->Al4C3+6CO
Al4C3+12H2O--->3CH4+4Al(OH)3
2CH4-->C2H2+3H2
3C2H2-->C6H6
C6H6+CH3Cl--->C6H5CH3+HCl
C6H5CH3+2KMnO4--->H2O+KOH+2MnO2+C6H5COOK
\(a,C_2H_6O+3O_2\xrightarrow[]{t^o}2CO_2+3H_2O\\ CO_2+2NaOH\rightarrow Na_2CO_3+H_2O\\ Na_2CO_3+CO_2+H_2O\rightarrow2NaHCO_3\\ NaHCO_3+HCl\rightarrow NaCl+CO_2\uparrow+H_2O\)
\(b,C_2H_4+H_2O\xrightarrow[axit]{t^o}C_2H_5OH\\ C_2H_5OH+O_2\underrightarrow{\text{men giấm}}CH_3COOH+H_2O\\ CH_3COOH+C_2H_5OH\xrightarrow[t^o]{H_2SO_{4\left(đặc\right)}}CH_3COOC_2H_5+H_2O\\ 2CH_3COOH+BaO\rightarrow\left(CH_3COO\right)_2Ba+H_2O\\ \left(CH_3COO\right)_2Ba+Na_2SO_4\rightarrow2CH_3COONa+BaSO_4\downarrow\\ CH_3COONa+NaOH\rightarrow Na_2CO_3+CH_4\uparrow\)
4Al + 3O2 -> 2Al2O3 ( nhiệt độ cao )
Al2O3 + 6HCl -> 2AlCl3 + 3H2O
AlCl3 + 3NaOH -> Al(OH)3 + 3NaCl ( Al(OH)3 kết tủa )
2Al(OH)3 -> Al2O3 + 3H2O ( nhiệt độ cao)
2Al2O3 -> 4Al + 3O2 ( nhiệt độ cao)
a) 2Fe+3Cl2--->2FeCl3
FeCl3+3NaOH--->3NaCl+Fe(OH)3
3Fe(OH)3-->Fe2O3+3H2O
Fe2O3+H2---->2Fe+3H2O
Fe+H2SO4---->FeSO4+H2
FeSO4+BaCl2---->FeCl2+BaSO4
b) Fe+2HCl--->FeCl2+H2
FeCl2+AgNO3--->2AgCl+Fe(NO3)2
Fe(NO3)2+2NaOH--->2NaNO3+Fe(OH)2
Fe(OH)2+Na2SO4--->2NaOH+FeSO4
FeSO4+Zn----->ZnSO4+Fe
Fe+.....Ko biết
c)4 Al+3O2--->2Al2O3
Al2O3+3H2SO4--->Al2(SO4)3+3H2O
Al2(SO4)3+3BaCl2---->2AlCl3+3BaCl2
Alcl3+3NaOH--->Al(OH)3+3NaCl
2Al(OH)3--->Al2O3+3H2O
2Al2O3--->4Al+3O2
a) 2Fe+3Cl2--->2FeCl3
FeCl3+3NaOH--->3NaCl+Fe(OH)3
3Fe(OH)3-->Fe2O3+3H2O
Fe2O3+H2---->2Fe+3H2O
Fe+H2SO4---->FeSO4+H2
FeSO4+BaCl2---->FeCl2+BaSO4
b) Fe+2HCl--->FeCl2+H2
FeCl2+AgNO3--->2AgCl+Fe(NO3)2
Fe(NO3)2+2NaOH--->2NaNO3+Fe(OH)2
Fe(OH)2+Na2SO4--->2NaOH+FeSO4
FeSO4+Zn----->ZnSO4+Fe
ko có PTHH
c)4 Al+3O2--->2Al2O3
Al2O3+3H2SO4--->Al2(SO4)3+3H2O
Al2(SO4)3+3BaCl2---->2AlCl3+3BaCl2
Alcl3+3NaOH--->Al(OH)3+3NaCl
2Al(OH)3--->Al2O3+3H2O
2Al2O3--->4Al+3O2
\(CaC_2+2H_2O\text{→}Ca\left(OH\right)_2+C_2H_2\)
\(C_2H_2+2H_2\text{→}C_2H_6\)
\(C_2H_6+Cl_2\text{→C_2}H_5Cl+HCl\)
CaC2+2H2O-->Ca(OH)2+C2H2
C2H2+2H2--to,xt>C2H6
C2H6+Cl2-to,xt>C2H5Cl+HCl
I I C2H2Br CO2
=> đoạn pứ này bạn nên ghi rõ ra ạ