Viết PTHH hoàn thành sơ đò chuỗi phản ứng sau
Al(OH)\(_{ }\)\(_3\) \(\underrightarrow{\left(1\right)}\) Al\(_2\)O\(_3\)\(\underrightarrow{\left(2\right)}\) Al\(_2\)(SO\(_4\))\(_3\)\(\underrightarrow{\left(3\right)}\) BaSO\(_4\)
\(1\\ 2Al\left(OH\right)_3\rightarrow\left(t^o\right)Al_2O_3+3H_2O\\ 2\\ Al_2O_3+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+3H_2O\\ Al_2\left(SO_4\right)_3+3BaCl_2\rightarrow3BaSO_4+2AlCl_3\)
Viết các phương trình phản ứng sau:
\(Cu\underrightarrow{1}CuO\underrightarrow{2}CuCl_2\xrightarrow[4]{3}Cu\left(OH\right)_2\xrightarrow[6]{5}Cu\left(NO_3\right)_2\underrightarrow{7}Fe\left(NO_3\right)_2\xrightarrow[10]{9}Fe\left(OH\right)_2\)
\(\left(1\right)Cu+\dfrac{1}{2}O_2\xrightarrow[]{t^0}CuO\\ \left(2\right)CuO+2HCl\rightarrow CuCl_2+H_2O\)
\(\left(3\right)CuCl_2+2NaOH\rightarrow Cu\left(OH\right)_2+2NaCl\\ \left(4\right)Cu\left(OH\right)_2+2HNO_3\rightarrow Cu\left(NO_3\right)_2+2H_2O\\ \left(5\right)Cu\left(NO_3\right)_2+Fe\rightarrow Fe\left(NO_3\right)_2+Cu\\ \left(6\right)Fe\left(NO_3\right)_2+2NaOH\rightarrow Fe\left(OH\right)_2+2NaNO_3\)
Viết phương trình hóa học của các phản ứng trong quá trình chuyển đổi sau:
FeS2 \(\underrightarrow{\left(1\right)}\) Fe2O3 \(\underrightarrow{\left(2\right)}\) FeCl3 \(\underrightarrow{\left(3\right)}\) Fe(OH)3 \(\underrightarrow{\left(4\right)}\) FeO \(\underrightarrow{\left(5\right)}\) FeSO4 \(\underrightarrow{\left(6\right)}\) Fe
(1) 4FeS2 + 11O2 → 2Fe2O3 + 8SO2
(2) Fe2O3 + 6HCl → 2FeCl3 + 3H2O
(3) FeCl3 + 3NaOH → Fe(OH)3 + 3NaCl
(4) 2Fe(OH)3 → Fe2O3 + 3H2O.
(5) FeO + H2SO4 → FeSO4 + H2O.
(6) FeSO4 + Mg → MgSO4 + Fe.
(1) 4FeS2 + 11O2 → 2Fe2O3 + 8SO2
(2) Fe2O3 + 6HCl → 2FeCl3 + 3H2O
(3) FeCl3 + 3NaOH → Fe(OH)3 + 3NaCl
(4) 2Fe(OH)3 → Fe2O3 + 3H2O.
(5) FeO + H2SO4 → FeSO4 + H2O.
(6) FeSO4 + Mg → MgSO4 + Fe.
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/\(Al\left(OH\right)_3\underrightarrow{\left(1\right)}Al_2O_3\underrightarrow{\left(2\right)}AlCl_3\underrightarrow{\left(3\right)}Al\underrightarrow{\left(4\right)}Al_2\left(SO_4\right)_3\)
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
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↓
m) 1. CuO + 2HCl → CuCl2 + H2O
2. CuCl2 + 2NaOH → 2NaCl + Cu(OH)2↓
3. Cu(OH)2 \(\underrightarrow{to}\) CuO + H2O
4. CuO + H2SO4 → CuSO4 + H2O
Phản ứng nào dưới đây thuộc loại phản ứng phân hủy?
\(A.CO_2+Ca\left(OH\right)_2\underrightarrow{t^o}CaCO_3+H_2O\)
\(B.CaO+H_2O\underrightarrow{t^o}Ca\left(OH\right)_2\)
\(C.2KMnO_4\underrightarrow{t^o}K_2MnO_4+MnO_2+O_2\)
\(D.Fe+2HCl\underrightarrow{t^o}FeCl_2+H_2\)
Phản ứng C
A là phản ứng trung hoà
B là phản ứng hoá hợp
D là phản ứng thế
Hoàn thành chuỗi phản ứng sau, ghi rõ điều kiện phản ứng ( nếu có ):
\(Fe\underrightarrow{\left(1\right)}FeCl_3\underrightarrow{\left(2\right)}Fe\left(OH\right)_3\underrightarrow{ \left(3\right)}Fe_2O_3\underrightarrow{\left(4\right)}Fe\)
Help! Nguyễn Việt HàDiệp Anh TúHoàng Nhất ThiênXuân SángHà Yến NhiKHUÊ VŨmuốn đặt tên nhưng chưa nghĩ ra bạn nào tốt nghĩ giùm mkHùng NguyễnNơ Lê ThịTô Ngọc Hà
2Fe + 3Cl2 --to--> 2FeCl3
FeCl3 + 3NaOH ---> Fe(OH)3 + 3NaCl
2Fe(OH)3 ---to--> Fe2O3 + 3H2O
Fe2O3 + 3H2 ---> 2Fe + 3H2O
chúc học tôt ---
Viết phương trình hóa học của các phản ứng thực hiện dãy chuyển đổi sau:
Al \(\underrightarrow{\left(1\right)}\) AlCl3 \(\underrightarrow{\left(2\right)}\) Al(OH)3 \(\underrightarrow{\left(3\right)}\) NaAlO2 \(\underrightarrow{\left(4\right)}\) Al(OH)3 \(\underrightarrow{\left(5\right)}\) Al2O3 \(\underrightarrow{\left(6\right)}\) Al
$(1) 2Al + 3Cl_2 \xrightarrow{t^o} 2AlCl_3$
$(2) AlCl_3 + 3KOH \to Al(OH)_3 + 3KCl$
$(3) Al(OH)_3 + NaOH \to NaAlO_2 + 2H_2O$
$(4) NaAlO_2 + HCl + H_2O \to Al(OH)_3 + NaCl$
$(5) 2Al(OH)_3 \xrightarrow{t^o} Al_2O_3 + 3H_2O$
$(6) 2Al_2O_3 \xrightarrow{đpnc} 4Al + 3O_2$
Viết phương trình hóa học hoàn thành sơ đồ chuyển hóa sau ( ghi rõ điều kiện nếu có)
FeO\(\underrightarrow{\left(1\right)}\)FeSO4\(\underrightarrow{\left(2\right)}\)Fe(OH)2\(\underrightarrow{\left(3\right)}\)FeO\(\underrightarrow{\left(4\right)}\)FeCl2.
HELP ME!!!MAI MIK THI RỒI!
`(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`
1. Lập PTHH cho chuỗi phản ứng sau:
a. Al2O3 \(\underrightarrow{\left(1\right)}\) Al \(\underrightarrow{\left(2\right)}\) AlCl3 \(\underrightarrow{\left(3\right)}\) NaCl \(\underrightarrow{\left(4\right)}\) NaOH
b. CuSO4 \(\underrightarrow{\left(1\right)}\) Cu(OH)2 \(\underrightarrow{\left(2\right)}\) CuO \(\underrightarrow{\left(3\right)}\) Cu \(\underrightarrow{\left(4\right)}\) CuCl2
@Cheewin , @Shinochi Kudou , @Einstein
b;
CuSO4 + 2NaOH -> Cu(OH)2 + Na2SO4
Cu(OH)2 -> CuO + H2O
CuO + CO -> Cu + CO2
Cu + 2FeCl3 -> 2FeCl2 + CuCl2
a)
2Al2O3 \(\underrightarrow{đp}\) 4Al + 3O2
2Al + 3Cl2 \(\rightarrow\) 2AlCl3
AlCl3 + 3NaOH \(\rightarrow\) Al(OH)3 + 3NaCl
2NaCl + 2H2O \(\rightarrow\) 2NaOH + Cl2 + H2
a;
2Al2O3 \(\xrightarrow[criolit]{đpnc}\)4Al + 3O2
2Al + 6HCl -> 2AlCl3 + 3H2
AlCl3 + 3NaOH -> Al(OH)3 + 3NaCl
2NaCl + 2H2O \(\underrightarrow{đpdd}\) 2NaOH + H2 + Cl2
CHUỖI PHẢN ỨNG
Fe\(\underrightarrow{\left(1\right)}\)FeCl3\(\underrightarrow{\left(2\right)}\)Fe(OH)3\(\underrightarrow{\left(3\right)}\)Fe2O3\(\underrightarrow{\left(4\right)}\)Fe(SO4)3
Al\(\underrightarrow{\left(1\right)}\)AlCl3\(\underrightarrow{\left(\text{2}\right)}\)Al(NO3)3\(\underrightarrow{\left(\text{3}\right)}\)Al(OH)3\(\underrightarrow{\left(\text{4}\right)}\)Al2O3
Al\(\underrightarrow{\left(\text{5}\right)}\)Al2O3\(\underrightarrow{\left(\text{6}\right)}\)Al\(\underrightarrow{\left(\text{7}\right)}\)Al(SO4)3\(\underrightarrow{\left(\text{8}\right)}\)AlCl3
\(\left(1\right)2Fe+3Cl_2\xrightarrow[t^0]{}2FeCl_3\\ \left(2\right)FeCl_2+3NaOH\rightarrow Fe\left(OH\right)_3+3NaCl\\ \left(3\right)2Fe\left(OH\right)_3\xrightarrow[t^0]{}Fe_2O_3+3H_2O\\ \left(4\right)Fe_2O_3+3H_2SO_4\rightarrow Fe_2\left(SO_4\right)_3+3H_2O\)
____________
\(\left(1\right)2Al+3Cl_2\rightarrow2AlCl_3\\ \left(2\right)AlCl_3+3AgNO_3\rightarrow Al\left(NO_3\right)_3+3AgCl\\ \left(3\right)Al\left(NO_3\right)_3+3NaOH\rightarrow Al\left(OH\right)_3+3NaNO_3\\ \left(4\right)2Al\left(OH\right)_3\xrightarrow[t^0]{}Al_2O_3+3H_2O\\ \left(5\right)Al_2O_3+3CO\xrightarrow[]{t^0}2Al+3CO_2\\ \left(6\right)4Al+3O_2\xrightarrow[]{t^0}2Al_2O_3\\ \left(7\right)2Al+3H_2SO_4\xrightarrow[]{}Al_2\left(SO_4\right)_3+3H_2\\ \left(8\right)Al_2\left(SO_4\right)_3+3BaCl_2\rightarrow2AlCl_3+3BaSO_4\)
