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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: \(Na_2O+H_2O->2NaOH\)
2: \(2Na+2H_2O->2NaOH+H_2\uparrow\)
3: \(2Al\left(OH\right)_3\underrightarrow{t^o}Al_2O_3+3H_2O\)
4: \(Al_2O_3+6HCl->2AlCl_3+3H_2O\)
5: \(FeO+2HCl->FeCl_2+H_2O\)
6: \(4P+5O_2\underrightarrow{t^o}2P_2O_5\)
7: \(N_2O_5+H_2O->2HNO_3\)
8: \(Zn+2HCl->ZnCl_2+H_2\)
9: \(2Al+3CuCl_2->2AlCl_3+3Cu\downarrow\)
10: \(2Al+3H_2SO_4->Al_2\left(SO_4\right)_3+3H_2\uparrow\)
1. \(Na_2O+H_2O\rightarrow2NaOH\)
2. \(2Na+2H_2O\rightarrow2NaOH+H_2\)
3. \(2Al\left(OH\right)_3\underrightarrow{t^o}Al_2O_3+3H_2O\)
4. \(Al_2O_3+6HCl\rightarrow2AlCl_3+3H_2O\)
5. \(FeO+2HCl\rightarrow FeCl_2+H_2O\)
6. \(4P+5O_2\underrightarrow{t^o}2P_2O_5\)
7. \(N_2O_5+H_2O\rightarrow2HNO_3\)
8. \(Zn+2HCl\rightarrow ZnCl_2+H_2\)
9. \(2Al+3CuCl_2\rightarrow2AlCl_3+3Cu\)
10. \(2Al+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+3H_2\uparrow\)
![](https://rs.olm.vn/images/avt/0.png?1311)
A/ 2Al + 6HCl ===> 2AlCl3 + 3H2
B/ 2Al(OH)3 =(nhiêt)==> Al2O3 + 3H2O
C/ Mg(OH)2 + H2SO4 ===> MgSO4 + 2H2O
Sau khi cân bằng ta được phương trình hóa học :
A) 2Al +6HCl ---------> 2AlCl3 + 3H2
B) 2Al(OH)3 ---------> Al2O3 + 3H2O
D) Mg(OH)2 +H2SO4 ---------> MgSO4+ 2H2O
![](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)
Cái này cân bằng à:
a) 2Al+ 3CuCl2 -> 2AlCl3 +3Cu
b) 2Na + 2HCl -> 2NaCl + H2
c) N2O5 + H2O-> 2HNO3
d) 2Al(OH)3 -t0-> Al2O3 +3H2O
e) Fe2O3 +3H2 -t0-> 2Fe +3H2O
![](https://rs.olm.vn/images/avt/0.png?1311)
a) 2Al + 3Cl2 ---> 2AlCl3
b) Fe2O3 + 3H2 ---> 2Fe + 3H2O
c) 4P + 5O2 ---. 2P2O5
d) 2Al(OH)3 ---> Al2O3 + 3H2O
e) (NH4)2CO3 + 2NaOH ---> 2Na2CO3 + NH3 + 2H2O
f) Fe + HCl ---> FeCl2 + O2 (đề sai)
g) 2KClO3 ----> 2KCl + 3O2
h) 3NaOH + FeCl3 ----> Fe(OH)3 + 3NaCl
i) ZnO + 2HCl ----> ZnCl2 + H2O
k) 2K + 2H2O ----> 2KOH + H2
m) 2Na + 2H2O ----> 2NaOH + H2
n) BaCl2 + H2SO4 -----> BaSO4 + 2HCl
o) Na2O + H2O ---> 2NaOH
a) 2Al + 3Cl2 → 2AlCl3
b) 2Fe2O3 + 6H2 → 4Fe + 6H2O
c)4P +5O2 → 2P2O5
d) 2Al(OH)3 → Al2O3 + 3H2O
e) \(\left(NH_4\right)_2CO_3+2NaOH\rightarrow Na_2CO_3+2NH_3+2H_2O\)
f) Fe + 2HCl → FeCl2 + H2
g) 2KClO3 → 2KCl + 3O2
h) 3NaOH + FeCl3 → Fe(OH)3 + 3NaCl
i) ZnO + 2HCl → ZnCl2 + H2O
k) 2K + 2H2O → 2KOH + H2
m) 2Na + 2H2O → 2NaOH + H2
n) BaCl2 + H2SO4 → BaSO4 + 2HCl
o) Na2O + H2O → 2NaOH
![](https://rs.olm.vn/images/avt/0.png?1311)
`Fe + 2HCl -> FeCl_2 + H_2`
`2Na + 2HCl -> 2NaCl + H_2`
`2Al + 6HCl -> 2AlCl_3 + 3H_2`
`2Al(OH)_3 + 3H_2SO_4 -> Al_2(SO_4)_3 + 6H_2O`
![](https://rs.olm.vn/images/avt/0.png?1311)
\(2Al+6HCl\Rightarrow2AlCl_3+3H_2\\ Mg+2HNO_3\Rightarrow Mg\left(NO_3\right)_2+H_2\\ C_2H_6O+3O_2\underrightarrow{t^o}2CO_2+3H_2O\\ 4P+5O_2\Rightarrow2P_2O_5\)
2Al(OH)3 → Al2O3 + 3H2O
Fe3O4 + 2C → 3Fe + 2CO2
2Al + 6HCl ===> 2AlCl3 + 3H2 (PT này bạn viết sai sản phẩm nhé !)
Al2O3 + 6HCl ==> 2AlCl3 + 3H2O
AlCl3 + 3NaOH ==> Al(OH)3 + 3NaCl
2Al + 6HCl → 2AlCl3 + 3H2
Al2O3 +6HCl → 2AlCl3 + 3H2O
AlCl3 + 3NaOH →Al(OH)3 + 3NaCl