Câu 2 Hoàn thành sơ đồ chuyển hóa sau; a, \(C_2H_4\rightarrow C_2H_5OH\rightarrow CH_3COOH\rightarrow\left(CH_3COO\right)_2Cu\) b, \(CaC_2\rightarrow\)\(C_2H_2\rightarrow C_2H_6\rightarrow C_2H_5Cl\)
\(a)\)
\(C_2H_4+H_2O\xrightarrow[t^o]{Axit}C_2H_5OH\)
\(C_2H_5OH+O_2\underrightarrow{lên-men-giâm}CH_3COOH+H_2O\)
\(2CH_3COOH+CuO--->\left(CH_3COO\right)_2Cu+H_2O\)
\(b)\)
\(CaC_2+2H_2O--->Ca\left(OH\right)_2+C_2H_2\)
\(C_2H_2+2H_2\xrightarrow[Ni]{t^o}C_2H_6\)
\(C_2H_6+Cl_2\xrightarrow[anh-sang]{t^o}C_2H_5Cl+HCl\)
Hoàn thành các pt phản ứng sau:
1. \(CH_4+Cl_2\rightarrow\)
2.\(C_6H_6+Br_2\rightarrow\)
3.\(C_6H_6+Cl_2\rightarrow\)
4.\(CH_3COOH+CaCO_3\rightarrow\)
5.\(\left(RCOO\right)_3C_3H_5+NaOH\rightarrow\)
6.\(CaCO_3+CO_2+H_2O\rightarrow\)
7.\(NaHCO_3\rightarrow\left(t^o\right)\)
8.\(NaOH+SiO_2\rightarrow\)
9.\(NaHCO_3+HCl\rightarrow\)
10.\(Cl_2+H_2O\rightarrow\)
11.\(CH_3COOC_2H_5+NaOH\rightarrow\)
12.\(C_6H_6+H_2\rightarrow\)
13.\(\left(RCOO\right)_3C_3H_5+H_2O\rightarrow\)
14.\(\left(C_6H_{10}O_5\right)n+H_2O\rightarrow\)
15.\(CH_3COONa+NaOH\rightarrow\)
16.\(Ca\left(HCO_3\right)_2\underrightarrow{t^o}\)
17.\(MnO_2+HCl\rightarrow\)
18.\(NaHCO_3+NaOH\rightarrow\)
19.\(C_4H_{10}+O_2\underrightarrow{men}\)
20.\(NaOH+Cl_2\rightarrow\)
21.\(CH_3COOC_2H_5+H_2O\underrightarrow{t^o}\)
\(1,CH_4+Cl_2\underrightarrow{\text{ánh sáng}}CH_3Cl\\ 2,C_6H_6+Br_2\xrightarrow[t^o]{Fe}C_6H_5Br\\ 3,C_6H_6+Cl_2\underrightarrow{\text{ánh sáng}}C_6H_5Cl\\ 4,2CH_3COOH+CaCO_3\rightarrow\left(CH_3COO\right)_2Ca+CO_2\uparrow+H_2O\\ 5,\left(RCOO\right)_3C_3H_5+3NaOH\rightarrow3RCOONa+C_3H_5\left(OH\right)_3\\ 6,CaCO_3+CO_2+H_2O\rightarrow Ca\left(HCO_3\right)_2\\ 7,2NaHCO_3\underrightarrow{t^o}Na_2CO_3+CO_2\uparrow+H_2O\\ 8,NaOH+SiO_2\underrightarrow{t^o}Na_2SiO_3+H_2O\)
\(9,NaHCO_3+HCl\rightarrow NaCl+CO_2\uparrow+H_2O\\ 10,Cl_2+H_2O⇌HCl+HClO\\ 11,CH_3COOC_2H_5+NaOH\rightarrow CH_3COONa+C_2H_5OH\\ 12,C_6H_6+3H_2\xrightarrow[t^o]{Ni}C_6H_{12}\\ 13,\left(RCOO\right)_3C_3H_5+3H_2O\rightarrow3RCOOH+C_3H_5\left(OH\right)_3\\ 14,\left(-C_6H_{10}O_5-\right)_n+nH_2O\rightarrow nC_6H_{12}O_6\\ 15,CH_3COONa+NaOH\underrightarrow{t^o}CH_4\uparrow+Na_2CO_3\\16, Ca\left(HCO_3\right)\underrightarrow{t^o}CaCO_3+CO_2\uparrow+H_2O\)
\(17,MnO_2+4HCl\rightarrow MnCl_2+Cl_2\uparrow+2H_2O\\ 18,NaHCO_3+NaOH\rightarrow Na_2CO_3+H_2O\\ 19,2C_4H_{10}+5O_2\xrightarrow[men,xt]{t^o}4CH_3COOH+2H_2O\\ 20,2NaOH+Cl_2\rightarrow NaCl+NaClO+H_2O\\ 21,CH_3COOC_2H_5+H_2O\underrightarrow{t^o}CH_3COOH+C_2H_5OH\)
Trong các phản ứng sau đâu là phản ứng thu nhiệt? Giải thích?
A. \(CaC_2+N_2\rightarrow\left(CH_3COOH\right)_2Ca+Ca\left(CN\right)_2\)
B. \(CaO+CO_2\rightarrow CaCO_3\)
C. \(O_2+C_2H_3COOH\rightarrow2H_2O+3CO_2\)
D. \(Fe+2HCl\rightarrow FeCl_2+H_2\)
Thực hiện các chuyển đổi sau đây: \(CaC_2\rightarrow C_2H_2\rightarrow C_2H_4\rightarrow C_2H_4Br_2\rightarrow C_2H_4\left(OH\right)_2\)
+) \(CaC_2+2H_2O\rightarrow C_2H_2+Ca\left(OH\right)_2\)
+) \(C_2H_2+H_2\rightarrow C_2H_4\)
+) \(C_2H_4+Br_2\rightarrow C_2H_4Br_2\)
+) \(C_2H_4Br_2+2H_2O\rightarrow C_2H_4\left(OH\right)_2+2HBr\)
\(Fe\left(OH\right)_2\rightarrow FeO\rightarrow FeCl_2\rightarrow Fe\left(OH\right)_2\rightarrow FeSO_4\rightarrow FeCl_2\rightarrow FeCl_3\rightarrow Fe\left(OH\right)_3\rightarrow Fe\left(NO_3\right)_2\rightarrow Fe\)
Đây là câu hỏi hóa mà nhỉ? Hi vọng bạn sớm đăng lại vào đúng box hóa nha!
\(Fe\left(OH\right)_2\underrightarrow{t^o}FeO+H_2O\)
\(FeO+2HCl\rightarrow FeCl_2+H_2O\)
\(FeCl_2+2KOH\rightarrow Fe\left(OH\right)_2\downarrow+2KCl\)
\(Fe\left(OH\right)_2+CuSO_4\rightarrow FeSO_4+Cu\left(OH\right)_2\downarrow\)
\(FeSO_4+BaCl_2\rightarrow FeCl_2+BaSO_4\downarrow\)
\(2FeCl_2+Cl_2\rightarrow2FeCl_3\)
\(FeCl_3+3KOH\rightarrow3KCl+Fe\left(OH\right)_3\downarrow\)
\(Fe\left(OH\right)_3+3HNO_3\rightarrow Fe\left(NO_3\right)_3+3H_2O\)
\(2Fe\left(NO_3\right)_3+3Mg\rightarrow3Mg\left(NO_3\right)_2+2Fe\)
\(a,Fe\rightarrow Fe\left(NO_3\right)_2\rightarrow Fe\left(OH\right)_2\rightarrow FeCl_2\rightarrow Fe\\ b,Fe\rightarrow FeCl_3\rightarrow Fe\left(NO_3\right)_3\rightarrow Fe\left(OH\right)_3\rightarrow Fe_2\left(SO_4\right)_3\)
\(a,\\ \left(1\right)Fe+Cu\left(NO_3\right)_2\rightarrow Fe\left(NO_3\right)_2+Cu\\ \left(2\right)Fe\left(NO_3\right)_2+2KOH\rightarrow Fe\left(OH\right)_2\downarrow+2KNO_3\\ \left(3\right)Fe\left(OH\right)_2+2HCl\rightarrow FeCl_2+2H_2O\)
\(\left(4\right)FeCl_2\) \(\rightarrow\left(đpdd\right)\) \(Fe+Cl_2\)
\(b,\\ \left(1\right)2Fe+3Cl_2\rightarrow\left(t^o\right)2FeCl_3\\ \left(2\right)FeCl_3+3AgNO_3\rightarrow Fe\left(NO_3\right)_3+3AgCl\downarrow\\ \left(3\right)Fe\left(NO_3\right)_3+3KOH\rightarrow Fe\left(OH\right)_3+3KNO_3\\ \left(4\right)2Fe\left(OH\right)_3+3H_2SO_4\rightarrow Fe_2\left(SO_4\right)_3+6H_2O\)
Viết các PTHH thực hiện các chuỗi biến hóa sau, ghi rõ điều kiện phản ứng ( nếu có ) :
a, \(SO_2\rightarrow Na_2SO_3\rightarrow Na_2SO_4\rightarrow NaOH\rightarrow Na_2CO_3\)
b, \(CaO\rightarrow CaCO_3\rightarrow CaO\rightarrow Ca\left(OH\right)_2\rightarrow CaCO_3\rightarrow CaSO_4\)
c, \(Fe\rightarrow FeCl_3\rightarrow Fe\left(OH\right)_3\rightarrow Fe_2O_3\rightarrow Fe_2\left(SO_4\right)_3\rightarrow FeCl_3\)
d, \(Fe\rightarrow FeCl_2\rightarrow Fe\left(NO_3\right)_2\rightarrow Fe\left(OH\right)_2\rightarrow FeSO_4\)
e, \(Cu\rightarrow CuO\rightarrow CuCl_2\rightarrow Cu\left(OH\right)_2\rightarrow CuO\rightarrow Cu\rightarrow CuSO_4\)
f, \(Al_2O_3\rightarrow Al\rightarrow AlCl_3\rightarrow NaCl\rightarrow NaOH\rightarrow Cu\left(OH\right)_2\)
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
a, SO2 + 2NaOH \(\rightarrow\)Na2SO3 + H2O
Na2SO3 + H2SO4 \(\rightarrow\)Na2SO4 + H2O + SO2
Na2SO4 + Ba(OH)2\(\rightarrow\) BaSO4+ 2 NaOH
CO2 + 2 NaOH \(\rightarrow\)Na2CO3 + H2O
b, CaO + CO2\(\rightarrow\) CaCO3
CaCO3 -t0-> CaO + CO2
CaO + H2O \(\rightarrow\)Ca(OH)2
Ca(OH)2 + CO2 \(\rightarrow\)CaCO3 + H2O
CaCO3 + H2SO4 \(\rightarrow\)CaSO4 + H2O + CO2
c, 2Fe + 3Cl2 -t0-> 2FeCl3
FeCl3 + 3NaOH \(\rightarrow\)Fe(OH)3 + 3NaCl
2Fe(OH)3 -t0-> Fe2O3 + 3H2O
Fe2O3 + 3H2SO4 \(\rightarrow\)Fe2(SO4)3 + 3H2O
Fe2(SO4)3 + 3BaCl2 \(\rightarrow\)2FeCl3 + 3BaSO4
d, Fe + 2HCl \(\rightarrow\)FeCl2 + H2
FeCl2 + 2AgNO3 \(\rightarrow\)Fe(NO3)2 + 2AgCl
Fe(NO3)2 + 2NaOH \(\rightarrow\)Fe(OH)2 + 2NaNO3
Fe(OH)2 + H2SO4\(\rightarrow\) FeSO4 + 2H2O
e, 2Cu + O2 -t0-> 2CuO
CuO + 2HCl \(\rightarrow\)CuCl2 + H2O
CuCl2 + 2NaOH\(\rightarrow\) Cu(OH)2 + 2NaCl
Cu(OH)2 -t0-> CuO + H2O
CuO + H2 -t0-> Cu + H2O
Cu + 2H2SO4đặc \(\rightarrow\)CuSO4 + SO2 + 2H2O
f, 2Al2O3 -đpnc/ criolit-> 4Al + 3O2
2Al + 3Cl2 -t0-> 2AlCl3
AlCl3 + 3NaOH \(\rightarrow\)Al(OH)3 + 3NaCl
2NaCl + 2H2O -đpmn-> 2NaOH + Cl2 + H2
2NaOH + CuCl2 \(\rightarrow\)Cu(OH)2 + 2NaCl
Thực hiện chuyển hóa:
\(a)K\rightarrow KO_2\rightarrow KOH\rightarrow K_2SO_4\rightarrow KCl\rightarrow KNO_3\)
\(b)K\rightarrow KOH\)
\(c)Ba\rightarrow BaO\rightarrow Ba\left(OH\right)_2\rightarrow BaCO_3\rightarrow BaO\rightarrow Ba\left(OH\right)_2\rightarrow Cu\left(OH\right)_2\rightarrow CuO\rightarrow Cu\rightarrow SO_2\)
hoàn thành các chuỗi phản ứng sau
1,\(FeCl_3\rightarrow Fe\left(OH\right)_3\rightarrow Fe_2O_3\rightarrow Fe\rightarrow Fe_3O_4\)
2,\(Ca\rightarrow CaO\rightarrow Ca\left(OH\right)_2\rightarrow CaCO_3\rightarrow Ca\left(HCO_3\right)_2\rightarrow CaCl_2\rightarrow CaO\)
3,\(FeS\rightarrow Fe_2O_3\rightarrow Fe\left(NO_3\right)_3\rightarrow Fe\left(OH\right)_3\rightarrow Fe_2O_3\rightarrow Fe\rightarrow FeS\)
Bài 3 :
4FeS + 7O2 --t--> 2Fe2O3 + 4SO2
Fe2O3 + 6HNO3 -> 2Fe(NO3)3 + 3H2O
Fe(NO3)3 + 3 NaOH -> Fe(OH)3 +3NaNO3
2Fe(OH)3 --t--> Fe2O3 + 3H2O
Fe2O3 + 3H2 -t-> 2Fe + 3H2O
Fe + S -t-> FeS
1, FeCl3 + 3KOH → Fe(OH)3 + 3KCl
2Fe(OH)3 \(\underrightarrow{t^o}\)Fe2O3 + 3H2O
Fe2O3 + 3H2 \(\underrightarrow{t^o}\) 2Fe + 3H2O
3Fe + 2O2 \(\underrightarrow{t^o}\) Fe3O4
2, 2Ca + O2 \(\underrightarrow{t^o}\) 2CaO
CaO + H2O → Ca(OH)2
Ca(OH)2 + CO2 → CaCO3 + H2O
CaCO3 + H2O + CO2→ Ca(HCO3)2
Ca(HCO3)2 + 2HCl → CaCl2 + 2H2O + 2CO2
CaCl2 + Ca(OH)2 → 2CaO + 2HCl
3, 4FeS + 7O2 \(\underrightarrow{t^o}\) 2Fe2O3 + 4SO2
Fe2O3 + 6HNO3 → 2Fe(NO3)3 + 3H2O
Fe(NO3)3 + 3KOH → Fe(OH)3 + 3KNO3
2Fe(OH)3 \(\underrightarrow{t^o}\) Fe2O3 + 3H2O
Fe2O3 + 3H2 \(\underrightarrow{t^o}\) 2Fe + 3H2O
Fe + S \(\underrightarrow{t^o}\) FeS
\(FeCl_3+3NaOH\rightarrow Fe\left(OH\right)_3+3NaCl\\2 Fe\left(OH\right)_3\underrightarrow{t^o}Fe_2O_3+3H_2O\\ Fe_2O_3+3CO\rightarrow2Fe+3CO_2\\3 Fe+2O_2\underrightarrow{t^o}Fe_3O_4\)
\(Ca+\frac{1}{2}O_2\underrightarrow{t^o}CaO\\ CaO+H_2O\rightarrow Ca\left(OH\right)_2\\ Ca\left(OH\right)_2+CO_2\rightarrow CaCO_3+H_2O\\ CaCO_3+H_2O+CO_2\rightarrow Ca\left(HCO_3\right)_2\\ Ca\left(HCO_3\right)+2HCl\rightarrow CaCl_2+2H_2O+2CO_2\\ CaCl_2+Ca\left(OH\right)_2\rightarrow2CaO+2HCl\)
\(4FeS+7O_2\underrightarrow{t^o}2Fe_2O_3+4SO_2\\ Fe_2O_3+HNO_3\rightarrow Fe\left(NO_3\right)_3+H_2O\\ Fe\left(NO_3\right)_3+3NaOH\rightarrow3NaNO_3+Fe\left(OH\right)_3\\ 2Fe\left(OH\right)_3\underrightarrow{t^o}Fe_2O_3+3H_2O\\ Fe_2O_3+3CO\underrightarrow{t^o}2Fe+3CO_2\\ Fe+S\underrightarrow{t^o}FeS\)
