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13 tháng 4 2019

1)(-C6H10O5-)n +nH2O -axit ;to-> nC6H12O6

2) C6H12O6 --men ; 30o-32oC--> 2C2H5OH + 2CO2

3) C2H5OH + 3O2 -to-> 2CO2 + 3H2O

4) CO2 + 2NaOH -> Na2CO3 + H2O

5) Na2CO3 + 2CH3COOH -> 2CH3COONa + H2O + CO2

6) 2C2H5OH + 2Na -> 2C2H5ONa + H2

7) C2H5OH + CH3COOH -> H2O + CH3COOC2H5

(đk: H2SO4 đ ; to)

13 tháng 4 2019

(1) (C6H10O5)n + nH2O => nC6H12O6

(2) C6H12O6 => (men rượu, to) 2CO2 + 2C2H5OH

(3) C2H5OH + 3O2 => (to) 2CO2 + 3H2O

(4) CO2 + 2NaOH => Na2CO3 + H2O

(5) Na2CO3 + 2CH3COOH => 2CH3COONa + CO2 + H2O

(6) C2H5OH + Na => C2H5ONa + 1/2 H2

(7) C2H5OH + CH3COOH => (to,xt: H2SO4đ) <pứ hai chiều> CH3COOC2H5 + H2O

15 tháng 4 2021

C2H5OH+3O2-to>2CO2+3H2O

b>

CO+O2-to>CO2

CO2+NaOH->NaHCO3

2NaHCO3-to>Na2CO3+H2O

Na2CO3+HCl->NaCl+H2O+CO2

NaCl+H2O-đp>NaOH+Cl2+H2

 

 

15 tháng 4 2021

\(a) C_2H_5OH + 3O_2 \xrightarrow{t^o} 2CO_2 + 3H_2O\\ b)\\ (1)2CO + O_2 \xrightarrow{t^o} 2CO_2\\ (2)CO_2 + NaOH \to NaHCO_3\\ (3)2NaHCO_3 \xrightarrow{t^o} Na_2CO_3 + CO_2 + H_2O\\ (4) Na_2CO_3 + 2HCl \to 2NaCl +C O_2 + H_2O\\ (5) 2NaCl + 2H_2O \xrightarrow{điện\ phân\ dung\ dịch} 2NaOH + H_2+ Cl_2 \)

13 tháng 4 2019

(1) CaC2 + 2H2O => C2H2 + Ca(OH)2

(2) C2H2 + H2 => (to,Pd) C2H4

(3) C2H4 + H2O => (to,H2SO4đ) C2H5OH

(4) C2H5OH + O2 => (men giấm) CH3COOH + H2O

(5) CH3COOH + C2H5OH => <pứ hai chiều> (xt:H2SO4đ, to) CH3COOC2H5 + H2O

13 tháng 4 2019

\(\left(1\right)CaC_2+2H_2O\rightarrow Ca\left(OH\right)_2+C_2H_2\)

\(\left(2\right)C_2H_2+H_2\xrightarrow[to]{Ni}C_2H_4\)

\(C_2H_4+2H_2O\xrightarrow[30-35^oC]{men.rượu}C_2H_5OH+H_2O\)

\(C_2H_5OH+O_2\xrightarrow[men.giấm]{30-35^oC}CH_3COOH+H_2O\)

\(C_2H_5OH+CH_3COOH\xrightarrow[\leftarrow]{H_2SO_4đ,t^o}CH_3COOC_2H_5+H_2O\)

15 tháng 4 2021

\((1) CaC_2 + 2H_2O \to Ca(OH)_2 + C_2H_2\\ (2) C_2H_2 + H_2 \xrightarrow{t^o,PbCO_3} C_2H_4\\ (3) C_2H_4 + H_2O \xrightarrow{t^o,H^+} C_2H_5OH\\ (4) C_2H_5OH + O_2 \xrightarrow{men\ giấm} CH_3COOH + H_2O\\ (5) CH_3COOH + C_2H_5OH \buildrel{{H_2SO_4}}\over\rightleftharpoons CH_3COOC_2H_5 + H_2O\)

13 tháng 9 2021

$(1) S + O_2 \xrightarrow{t^o} SO_2$
$(2) SO_2 + H_2O \to H_2SO_3$
$(3) H_2SO_3 + 2NaOH \to Na_2SO_3 + 2H_2O$
$(4) Na_2SO_3 + 2HCl \to 2NaCl +SO_2 + H_2O$
$(5) SO_2 + 2NaOH \to Na_2SO_3 + H_2O$

Câu 1 ) A / Mg(NO3) \(\underrightarrow{\left(1\right)}\) Mg(OH)2 \(\underrightarrow{\left(2\right)}\) MgCl2\(\underrightarrow{\left(3\right)}\) KCl \(\underrightarrow{\left(4\right)}\) KNO3 B/...
Đọc tiếp

Câu 1 ) A / Mg(NO3) \(\underrightarrow{\left(1\right)}\) Mg(OH)2 \(\underrightarrow{\left(2\right)}\) MgCl2\(\underrightarrow{\left(3\right)}\) KCl \(\underrightarrow{\left(4\right)}\) KNO3

B/ \(Na\underrightarrow{\left(1\right)}Na_2O\underrightarrow{\left(2\right)}NaOH\underrightarrow{\left(3\right)}Na_2SO_4\underrightarrow{\left(4\right)}NaCl\underrightarrow{\left(5\right)}NaNO_3\underrightarrow{\left(6\right)}NaCl\underrightarrow{\left(7\right)}NaOH\)

C/\(Mg\underrightarrow{\left(1\right)}MgO\underrightarrow{\left(2\right)}MgCl_2\underrightarrow{\left(3\right)}Mg\left(NO_3\right)_2\underrightarrow{\left(4\right)}Mg\left(OH\right)_2\underrightarrow{\left(5\right)}MgSO_4\underrightarrow{\left(6\right)}MgCO_3\)

D/\(CuSO_4\underrightarrow{\left(1\right)}Cu\left(OH\right)_2\underrightarrow{\left(2\right)}CuO\underrightarrow{\left(3\right)}CuCl_2\underrightarrow{\left(4\right)}Cu\left(OH\right)_2\underrightarrow{\left(5\right)}CuSO_4\)

E/\(CuCl_2\underrightarrow{\left(1\right)}Cu\left(OH\right)_2\underrightarrow{\left(2\right)}CuSO_4\underrightarrow{\left(3\right)}Cu\underrightarrow{\left(4\right)}CuO\)

F/ \(Cu\left(OH\right)_2\underrightarrow{\left(1\right)}CuO\underrightarrow{\left(2\right)}CuCl_2\underrightarrow{\left(3\right)}Cu\left(NO_3\right)_2\underrightarrow{\left(4\right)}NaNO_3\)

G/\(Fe_2O_3\underrightarrow{\left(1\right)}FeCl_3\underrightarrow{\left(2\right)}Fe\left(OH\right)_3\underrightarrow{\left(3\right)}Fe_2O_3\underrightarrow{\left(4\right)}Fe_2\left(SO_4\right)_3\)

H/ \(ZnCl_2\underrightarrow{\left(1\right)}Zn\left(OH\right)_2\underrightarrow{\left(2\right)}ZnCl_2\underrightarrow{\left(3\right)}NaCl\underrightarrow{\left(4\right)}NaNO_3\)

M/\(CuO\underrightarrow{\left(1\right)}CuCl_2\underrightarrow{\left(2\right)}Cu\left(OH\right)_2\underrightarrow{\left(3\right)}CuO\underrightarrow{\left(4\right)}CuSO_4\)

N/\(Fe\left(OH\right)_2\underrightarrow{\left(1\right)}FeO\underrightarrow{\left(2\right)}FeCl_2\underrightarrow{\left(3\right)}Fe\left(ỌH_2\right)\underrightarrow{\left(4\right)}FeSO_4\underrightarrow{\left(5\right)}FeCl_2\underrightarrow{\left(6\right)}Fe\left(NO_3\right)_2\)

Z/ \(Mg\left(OH\right)_2\underrightarrow{\left(1\right)}MgO\underrightarrow{\left(2\right)}MgSO_4\underrightarrow{\left(3\right)}MgCl_2\underrightarrow{\left(4\right)}Mg\left(OH\right)_2\underrightarrow{\left(5\right)}MgCl_2\underrightarrow{\left(6\right)}Mg\left(NO_3\right)_2\)

X/\(Al\left(OH\right)_3\underrightarrow{\left(1\right)}Al_2O_3\underrightarrow{\left(2\right)}AlCl_3\underrightarrow{\left(3\right)}Al\underrightarrow{\left(4\right)}Al_2\left(SO_4\right)_3\)

11
7 tháng 11 2018

g) 1. Fe2O3 + 6HCl → 2FeCl3 + 3H2O

2. FeCl3 + 3NaOH → 3NaCl + Fe(OH)3

3. 2Fe(OH)3 \(\underrightarrow{to}\) Fe2O3 + 3H2O

4. Fe2O3 + 3H2SO4 → Fe2(SO4)3 + 3H2O

7 tháng 11 2018

h) 1. ZnCl2 + 2NaOH → 2NaCl + Zn(OH)2

2. Zn(OH)2 + 2HCl → ZnCl2 + 2H2O

3. ZnCl2 + 2NaOH → 2NaCl + Zn(OH)2

4. NaCl + AgNO3 → NaNO3 + AgCl↓

27 tháng 5 2017

CÁI NÀY HƠI BỊ KHÓ HIỂU NHƯNG MÌNH SẼ LÀM THỬ ( THEO THỨ TỰ ) :

\(\left(1\right)Al_4C_3+12H_2O\rightarrow4Al\left(OH\right)_3+3CH_4.\)

\(\left(2\right)2CH_4\underrightarrow{1500^o}C_2H_2+3H_2.\)

\(\left(3\right)CaC_2+2H_2O\rightarrow Ca\left(OH\right)_2+C_2H_2.\)

\(\left(4\right)C_2H_2+H_2\underrightarrow{Ni,t^o}C_2H_4.\)

\(\left(5\right)C_2H_4+Br_2\rightarrow C_2H_4Br_2.\)

\(\left(6\right)C_2H_4+H_2O\underrightarrow{axit}C_2H_5OH.\)

27 tháng 5 2017

Khó hiểu quá.

24 tháng 12 2022

`(1)FeO + H_2SO_4 -> FeSO_4 + H_2O`

`(2)FeSO_4 + Ba(OH)_2 -> Fe(OH)_2 + BaSO_4`

`(3)Fe(OH)_2 -> (t^o, chân.không) FeO + H_2O`

`(4)FeO + 2HCl -> FeCl_2 + H_2O`

9 tháng 12 2019

1) Al\(_2\)(SO\(_4\))\(_3\)+3BaCl\(_2\)→2AlCl\(_3\)+3BaSO\(_4\)

2)AlCl\(_3\)+3AgNO\(_3\)→Al(NO\(_3\))\(_3\)+3AgCl↓

3)Al(NO\(_3\))\(_3\)+3NaOH→Al(OH)\(_3\)+3NaNO\(_3\)

4)2Al(OH)\(_3\)\(\underrightarrow{to}\)Al2O3+3H2O

5)2Al2O3\(\xrightarrow[criolit]{đpnc}\)4Al+3O2

26 tháng 10 2019

CaO+H2O---->Ca(OH)2

Pt2 ko ổn lw

Na2CO3+2HCl----->2NaCl+H2O+CO2

2NaCl+H2SO4---->Na2SO4+2HCl

Na2SO4+BaCl2---->2NaCl+BaSO4

2NaCl+2H2O---->Cl2+H2+2NaOH

NaOH+HCl----->NaCl+H2O

2NaCl+H2SO4---->Na2SO4+2HCl

26 tháng 10 2019

PTHH:CaO+H2O---->Ca(OH)2

Na2CO3+2HCl----->2NaCl+H2O+CO2

2NaCl+H2SO4---->Na2SO4+2HCl

Na2SO4+BaCl2---->2NaCl+BaSO4

2NaCl+2H2O---->Cl2+H2+2NaOH

NaOH+HCl----->NaCl+H2O

2NaCl+H2SO4---->Na2SO4+2HCl

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