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![](https://rs.olm.vn/images/avt/0.png?1311)
\(4Al+3O_2\underrightarrow{t^o}2Al_2O_3\)
\(4K+O_2\rightarrow2K_2O\)
\(2Al\left(OH\right)_3\underrightarrow{t^o}Al_2O_3+3H_2O\)
\(Al_2O_3+6HCl\rightarrow2AlCl_3+3H_2O\)
\(CaCl_2+Fe\left(OH\right)_3\rightarrow\) Không phản ứng
\(BaCl_2+H_2SO_4\rightarrow2HCl+BaSO_4\downarrow\)
![](https://rs.olm.vn/images/avt/0.png?1311)
1. \(2Al+3Fe\left(NO_3\right)_2\rightarrow2Al\left(NO_3\right)_3+3Fe\)
2. \(P_2O_5+3Ba\left(OH\right)_2\rightarrow Ba_3\left(PO_4\right)_2+3H_2O\)
3. \(Al\left(OH\right)_3+3HCl\rightarrow AlCl_3+3H_2O\)
4. \(Al_2\left(SO_4\right)_3+3Ca\left(OH\right)_2\rightarrow3CaSO_4+2Al\left(OH\right)_3\)
5. \(Fe_3O_4+8HCl\rightarrow FeCl_2+2FeCl_3+4H_2O\)
6. \(Mg\left(NO_3\right)_2\underrightarrow{t^o}MgO+2NO_2+\dfrac{1}{2}O_2\)
7. \(2xFe+yO_2\underrightarrow{t^o}2Fe_xO_y\)
8. \(CH_4+2O_2\underrightarrow{t^o}CO_2+2H_2O\)
9. \(C_2H_6O+3O_2\underrightarrow{t^o}2CO_2+3H_2O\)
Bạn tham khảo nhé!
\(1.Al+Fe\left(NO_3\right)_2--->Al\left(NO_3\right)_2+Fe\)
\(2.P_2O_5+3Ba\left(OH\right)_2--->Ba_3\left(PO_4\right)_2+3H_2O\)
\(3.Al\left(OH\right)_3+3HCl--->AlCl_3+3H_2O\)
\(4.Al_2\left(SO_4\right)_3+3Ca\left(OH\right)_2--->3CaSO_4+2Al\left(OH\right)_3\downarrow\)
\(5.Fe_3O_4+8HCl--->FeCl_2+2FeCl_3+4H_2O\)
\(6.2Mg\left(NO_3\right)_2\overset{t^o}{--->}2MgO+4NO_2+O_2\)
\(7.xFe+\dfrac{y}{2}O_2\overset{t^o}{--->}Fe_xO_y\)
\(8.CH_4+2O_2\overset{t^o}{--->}CO_2+2H_2O\)
\(9.C_2H_6O+3O_2\overset{t^o}{--->}2CO_2+3H_2O\)
![](https://rs.olm.vn/images/avt/0.png?1311)
1) 4Al + 3O2 --to--> 2Al2O3
2) 2NaOH + H2SO4 --> Na2SO4 + 2H2O
3) 2Al + 6HCl --> 2AlCl3 + 3H2
4) Fe2O3 + 3H2SO4 --> Fe2(SO4)3 + 3H2O
5) P2O5 + 3H2O --> 2H3PO4
6) 3Ca(OH)2 + 2FeCl3 --> 3CaCl2 + 2Fe(OH)3
![](https://rs.olm.vn/images/avt/0.png?1311)
1) C4H10 + \(\dfrac{13}{2}\)O2 \(\underrightarrow{to}\) 4CO2 + 5H2O
2) 6NaOH + Fe2(SO4)3 → 3Na2SO4 + 2Fe(OH)3↓
3) 4FeS2 + 11O2 \(\underrightarrow{to}\) 2Fe2O3 + 8SO2
4) 6KOH + Al2(SO4)3 → 3K2SO4 + 2Al(OH)3↓
5) 2CH4 + O2 + 2H2O → 2CO2 + 6H2
6) 8Al + 3Fe3O4 → 4Al2O3 + 9Fe
![hihi hihi](https://hoc24.vn/media/cke24/plugins/smiley/images/hihi.png)
![](https://rs.olm.vn/images/avt/0.png?1311)
1) \(2Fe+3Cl_2\underrightarrow{t^o}2FeCl_3\)
2) \(Ba\left(NO_3\right)_2+Na_2CO_3\rightarrow BaCO_3\downarrow+2NaNO_3\)
3) \(2Al+6HCl\rightarrow2AlCl_3+3H_2\)
4) \(3H_2SO_4+2Fe\left(OH\right)_3\rightarrow Fe_2\left(SO_4\right)_3+6H_2O\)
5) \(Fe_2O_3+3CO\underrightarrow{t^o}2Fe+3CO_2\)
![](https://rs.olm.vn/images/avt/0.png?1311)
1/ Fe2O3+3CO\(\rightarrow\)2Fe+3CO2
2/ 3AgNO3+Al=Al(NO3)3+3Ag
3/ 2HCl+CaCO3=CaCl2+H2O+CO2
4/ 2C4H10+13O2=8CO2+10H2O
5/6NaOH+Fe2(SO4)3=2Fe(OH)3+3Na2SO4
6/4FeS2+11O2=2Fe2O3+8SO2
7/6KOH+Al2(SO4)3=3K2SO4+2Al(OH)3
8/2CH4+O2+2H2O=2CO2+6H2
9/8Al+3Fe3O4=4Al2O3+9Fe
10/FexOy+(x-y)CO=xFeO+(x-y)CO2
Viết phương trình hóa học biểu diễn sơ đồ biến hóa sau:
KClO3 -->(A) -->(B) -->(C) -->(D) -->CaCO3
(Trong đó (A), (B), (C), (D) là các chất riêng biệt).
2) Cho các chất rắn sau ở dạng bột: BaO, MgO, P2O5, Na2O, CuO, Fe2O3. Nêu cách làm để nhận ra mỗi chất. Viết phương trình hóa học xảy ra (nếu có).
![](https://rs.olm.vn/images/avt/0.png?1311)
a. Fe2O3 + 3CO --> 2Fe + 3CO2
b. 2Al +3H2SO4 --> Al2(SO4)3 + 3H2
c.2Al(OH)3 + 3H2SO4 --> Al2( SO4)3 + 6H2O
d. 2KOH + H2SO4 --> K2SO4 + 2H2O
e.Fe(OH)2 +2HCl--> FeCl2 + 2H2O
f. Fe2(SO4)3 + 3BaCl2 --> 2FeCl3 + 3BaSO4
g. 2Al + 3CuSO4 --> Al2(SO4)3 + 3Cu
h. 2Al + 3MgO --> Al2O3 + 3Mg
i. 2Al + 3Cl2 --> 2AlCl3
![](https://rs.olm.vn/images/avt/0.png?1311)
1.Fe2O3+3CO- > 2Fe + 3CO2
2.3AgNO3+Al -> Al(NO3)3+ 3Ag
3.2HCl+CaCO3 -> CaCl2+H2O+ CO2
4.2C4H10+5O2 -> 4CO2+2H2O
5.NaOH+FE2(SO4)3 -> Fe(OH)3+Na2SO4
6.4FeS2+11O2 -> 2Fe2O3+8SO2
7.6KOH+Al2(SO4)3 -> 3K2SO4+2Al(OH)3
9.8Al+3Fe3O4 -> 4Al2O3+9Fe
10.Fe3O4+4CO -> 3Fe+4CO2
11.FeO+H2 -> Fe+H2O
11.FeO+H2 -> Fe+H2O
PTHH 1: Fe2O3 + 3CO -to-> 2Fe + 3CO2
PTHH 2: 3AgNO3 + Al -> Al(NO3)3 + 3Ag
PTHH 3: 2HCl + CaCO3 -> H2O + CO2 + CaCl2
PTHH 4: 2C4H10 + 13O2 -> 8CO2 + 10H2O
PTHH 5: 6NaOH + Fe2(SO4)3 -> 2Fe(OH)3 + 3Na2SO4
PTHH 6: 4FeS2 + 11O2 -to-> 2Fe2O3 + 8SO2
![](https://rs.olm.vn/images/avt/0.png?1311)
+ 2Mg + O2 → 2MgO
+ 2Al + 6HCl → 2AlCl3 + 3H2\(\uparrow\)
+ Fe2O3 + 6HCl → 2FeCl3 + 3H2O
+ 2Fe(OH)3 + 3H2SO4 → Fe2(SO4)3 + 6H2O
4FeS2 + 11O2 -> 2Fe2O3 + 8SO2
Fe2O3 + 3H2-> 2Fe + 3H2O
Fe + 2HCl -> FeCl2 + H2
H2 + Cl2 -> 2HCl
Fe2O3 + 6HCl -> 2FeCl3 + 3 H2O
FeCl3 + 3NaOH -> Fe(OH)3 + 3NaCl
2Fe(OH)3 + 3H2SO4 -> Fe2(SO4)3 + 6H2O
Fe2(SO4)3 +
2FeS2 +11/2 O2-> Fe2O3 + 4SO2
Fe2O3 + 3H2-> 2Fe +3 H2O
Fe + 2HCl-> FeCl2 + H2
H2 + Cl2-> 2HCl
6HCl + Fe2O3-> 2FeCl3 + 3H2O
FeCl3+ 3NaOH-> Fe(OH)3 +3 NaCl
2Fe(OH)3+ 3H2SO4-> Fe2(SO4)3 + 6H2O
Fe2(SO4)3+ 2SnCl2-> FeCl2+ FeSO4 +2SnSO4
3FeCl2 + 2Al-> 2AlCl3 + 3Fe
AlCl3 + 3NaOH-> Al(OH)3 + 3NaCl
2Al(OH)3-> Al2O3 +3 H2O
2Al2O3 -> 2Al + 3O2 ( điện phân nóng chảy trên quặng criotit)
Al + NaOH + H2O-> NaAlO2 + 3/2H2
NaAlO2 + CO2 +2 H2O-> Al(OH)3 + NaHCO3
2Al(OH)3+3 H2SO4-> Al2(SO4)3 + 6H2O