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![](https://rs.olm.vn/images/avt/0.png?1311)
\(a,2Al_2O_3\rightarrow\left(đpnc,criolit\right)4Al+3O_2\\ 2Al+6HCl\rightarrow2AlCl_3+3H_2\\ AlCl_3+3NaOH\rightarrow Al\left(OH\right)_3+3NaCl\\ 2Al\left(OH\right)_3\rightarrow\left(t^o\right)Al_2O_3+3H_2O\\ Al_2O_3+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+3H_2O\)
\(b,2Cu+O_2\rightarrow\left(t^o\right)2CuO\\ CuO+2HCl\rightarrow CuCl_2+H_2O\\ CuCl_2+2KOH\rightarrow Cu\left(OH\right)_2+2KCl\\ Cu\left(OH\right)_2\rightarrow\left(t^o\right)CuO+H_2O\)
![](https://rs.olm.vn/images/avt/0.png?1311)
a.
2Al2O3 \(\underrightarrow{t^o}\)4Al + 3O2\(\uparrow\)
Al + 6HNO3 \(\rightarrow\) Al(NO3)3\(\downarrow\) + 3NO2 + 3H2O
Al(NO3)3 + NaOH \(\rightarrow\) Al(OH)3\(\downarrow\) + NaNO3
2Al(OH)3 \(\xrightarrow[criolit]{đpnc}\) Al2O3 + 3H2O
Al2O3 + 3H2SO4 \(\rightarrow\) Al2(SO4)3 + 3H2O
Al2(SO4)3 + 3BaCl2 \(\rightarrow\) 3BaSO4\(\downarrow\) + 2AlCl3
2AlCl3 \(\xrightarrow[criolit]{đpnc}\) 2Al + 3Cl2\(\uparrow\)
2Al + 3CuSO4 \(\rightarrow\) 3Cu + Al2(SO4)3
![](https://rs.olm.vn/images/avt/0.png?1311)
a: \(Cu+H_2SO_4->CuSO_4+H_2\)
\(CuSO_4+BaCl_2->CuCl_2+BaSO_4\)
\(2CuCl_2+O_2->2CuO+2Cl_2\)
![](https://rs.olm.vn/images/avt/0.png?1311)
a)
4Al + 3O2\(\rightarrow\) 2Al2O3
Al2O3 +6HNO3\(\rightarrow\) 2Al(NO3)3 + 3H2O
Al(NO3)3 + 3NaOH \(\rightarrow\)Al(OH)3 + 3NaNO3
2Al(OH)3 \(\underrightarrow{^{to}}\) Al2O3 + 3H2O
Al2O3 +6HCl \(\rightarrow\) 2AlCl3 + 3H2O
AlCl3 không điện phân nóng chảy được \(\rightarrow\) Al2O3 \(\underrightarrow{^{\text{đpnc}}}\)2Al + \(\frac{3}{2}\)O2
b) 2Fe + 3Cl2 \(\rightarrow\) 2FeCl3
FeCl3 + 3NaOH \(\rightarrow\)Fe(OH)3 + 3NaCl
2Fe(OH)3\(\rightarrow\)Fe2O3 + 3H2O
Fe2O3 + 3CO \(\rightarrow\)2Fe + 3CO2
Fe + 2HCl\(\rightarrow\) FeCl2 + 2
FeCl2 + 2AgNO3\(\rightarrow\)Fe(NO3)2 + 2AgCl (thường ra Fe+3 )
c) 2Mg + O2\(\rightarrow\)2MgO
MgO + 2HCl \(\rightarrow\) MgCl2 + H2O
MgCl2 + 2NaOH \(\rightarrow\) Mg(OH)2 + 2NaCl
Mg(OH)2 + H2SO4 \(\rightarrow\)MgSO4 + 2H2O
MgSO4 + BaCl2 \(\rightarrow\) MgCl2 + BaSO4
d) Cu(OH)2\(\underrightarrow{^{to}}\) CuO + H2O
CuO + H2SO4\(\rightarrow\)CuSo4 + H2O
CuSO4 + BaCl2 \(\rightarrow\) BaSO4 + CuCl2
CuCl2 + 2AgNO3 \(\rightarrow\) Cu(NO3)2 + 2AgCl
Fe + Cu(NO3)2\(\rightarrow\) Fe(NO3)2 + Cu
Cu + \(\frac{1}{2}\)O2 \(\rightarrow\) CuO
e) 4Na + O2\(\rightarrow\) 2Na2O
Na2O + H2O \(\rightarrow\) 2NaOH
2NaOH + CO2 \(\rightarrow\)Na2CO3 + H2O
Na2CO3 + H2SO4\(\rightarrow\) Na2SO4 + CO2 + H2O
Na2SO4 + BaCl2 \(\rightarrow\)BaSO4 + 2NaCl
NaCl + AgNO3\(\rightarrow\) AgCl + NaNO3
f) Fe3O4 + 4CO\(\rightarrow\) 3Fe + 4CO2
2Fe + 3Cl2 \(\rightarrow\)2FeCl3
FeCl3 + 3AgNO3 \(\rightarrow\) Fe(NO3)3 +3AgCl
Fe(NO3)3 + 3NaOH \(\rightarrow\) Fe(OH)3 + 3NaNO3
Lần sau đăng tách riêng ra nhé
Nhìn rối mắt lắm
a) Al -> Al2O3-> Al(NO3)3-> Al(OH)3 -> Al2O3 -> AlCl3 -> Al
(1) 2A1 + O2 t0→ Al2O3
(2) Al2O3 + 6HCl → 2AlCl3 + 3H2O
(3) Al(NO3)3 + 3NaOH (vừa đủ) → 3NaNO3 + Al (OH)3
(4) 2Al(OH)3 →t0 Al2O3+ ЗН2О
(5) 2Al2O3 đpnc−−→đpnc 4Al + 3O2
(6) 2Al + 3Cl2 t→t0 2AlCl3
b) Fe -> FeCl3 -> Fe(OH)3 -> Fe2O3-> Fe -> FeCl2 -> Fe(NO3)3
(1) 2Fe + 3Cl2 → 2FeCl3
(2) FeCl3 + 3NaOH → 3NaCl + Fe(OH)3
(3) 2Fe(OH)3 → Fe2O3 + 3H2O
(4) Fe2O3 + H2→ Fe + H2O
(5) 3Fe + 2HCl → 2FeCl2 +H2↑
(6) Fe(NO3)3+3NaOH ➞Fe(OH)3 +3Na(NO3)
dài wá mình trả lời những câu còn lại sau : thông cảm cho mk nha❗❕
![](https://rs.olm.vn/images/avt/0.png?1311)
a) Fe+Cl-->FeCl3
FeCl3+NaOH-->Fe(OH)3+NaCl
Fe(OH)3--> Fe2O3+H2O
Fe2O3+CO--> Fe+Co2
b)
Fe+HCl->Fecl2 +H2
FeCl2+Cl->FeCl3
FeCl3+AgNo3-> Fe(No3)3+AgCl
Fe(OH)3-> Fe2O3+ H2O
Fe2O3+CO->Fe+ CO2
c) Al+O2->Al2O3
Al2O3+ HCl-> AlCl3+H2
AlCl3+NaOH->Al(OH)3+NACl
Al(OH)3--> Al2O3+H2O
Al2O3+Co--> Al+Co2
Al+ HCl->AlCl3+H2
d) S+O2-> SO2
So2+O2->So3
So3+O2->So4
So4+H2O->H2So4+Oh
H2So4+NaOH->Na2SO4+H2O
Na2So4+BaCl--> NaCl+BaSO4
e) Cu(OH)2-> CuO+H2O
CuO+H2SO4-> CuSo4+H2
CuSO4+HCl-> CuCl2+H2So4
CuCl2+HNO3-> Cu(NO3)2+HCl
Cu(NO3)2+H2O->Cu+ HNO3+O2
Cu+ O2-> Cuo
Bạn ghi ko rõ ràng( dấu cộng ko có, mũ thì không rõ là ở đâu, ít nhất bạn ghi mũ 3 như ^3)
Nói chung là bạn gửi lại cho mình để mình làm cho, nhớ ghi rõ ra nhé
a)\(2Cu+O_2\underrightarrow{t^o}2CuO\)
\(CuO+2HCl\rightarrow CuCl_2+H_2O\)
\(CuCl_2+H_2SO_4\rightarrow CuSO_4+2HCl\)
\(CuSO_4+2NaOH\rightarrow Cu\left(OH\right)_2+Na_2SO_4\)
\(Cu\left(OH\right)_2\underrightarrow{t^o}CuO+H_2O\)
\(CuO+H_2\rightarrow Cu+H_2O\)
\(Cu+Cl_2\rightarrow CuCl_2\)
\(CuCl_2+2NaOH\rightarrow Cu\left(OH\right)_2+2NaCl\)
b)\(2Al+3Cl_2\rightarrow2AlCl_3\)
\(AlCl_3+3NaOH\rightarrow Al\left(OH\right)_3+3NaCl\)
\(2Al\left(OH\right)_3\underrightarrow{t^o}Al_2O_3+3H_2O\)
\(Al_2O_3+6HNO_3\rightarrow2Al\left(NO_3\right)_3+3H_2O\)
\(2Al\left(NO_3\right)_3+3Mg\rightarrow3Mg\left(NO_3\right)_2+2Al\)
a,
Cu+ \(\frac{1}{2}\)O2\(\underrightarrow{^{to}}\) CuO
CuO+ 2HCl \(\rightarrow\) CuCl2+ H2O
Phương trình 3 ko tồn tại
CuSO4+ 2NaOH \(\rightarrow\) Cu(OH)2+ Na2SO4
Cu(OH)2\(\underrightarrow{^{to}}\) CuO+ H2O
CuO+ CO \(\underrightarrow{^{to}}\)Cu+ CO2
Cu+ Cl2 \(\underrightarrow{^{to}}\)CuCl2
CuCl2+ 2NaOH\(\rightarrow\) Cu(OH)2+ 2NaCl
b,
Al+ 3/2Cl2 \(\underrightarrow{^{to}}\)AlCl3
AlCl3+ 3NH3+ 3H2O\(\rightarrow\)Al(OH)3+ 3NaCl
2Al(OH)3 \(\underrightarrow{^{to}}\) Al2O3+ 3H2O
Al2O3+ 6HNO3 \(\rightarrow\)2Al(NO3)3+ 3H2O
2Al(NO3)3+ 3Mg\(\rightarrow\) 3Mg(NO3)2+ 2Al