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![](https://rs.olm.vn/images/avt/0.png?1311)
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
![](https://rs.olm.vn/images/avt/0.png?1311)
Câu b :
3Fe+2O2--> Fe2O3+ FeO(Fe3O4)
Fe2O3+3C--> 2Fe + 3CO
Fe+ 2HCl--> FeCl2 +H2
Câu d :
KMnO4 -> K2MnO4 + MnO2 + O2
S + O2 --> SO2
SO2 + O2 -> SO3 ( xúc tác V2O5)
SO3 + H2O -> H2SO4
![](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)
A
2KMnO4 \(\rightarrow\) K2MnO4 + MnO2 + O2\(\uparrow\)
Fe + 2HCl \(\rightarrow\) FeCl2 + H2\(\uparrow\)
Fe + Cl2 \(\rightarrow\) FeCl3
Fe + O2 \(\rightarrow\) Fe3O4
Fe3O4 + 8HCl \(\rightarrow\) FeCl2 + FeCl3 + 4H2O
OK
![](https://rs.olm.vn/images/avt/0.png?1311)
a) \(K_2O+H_2O->2KOH\)
b) \(2Fe+3Cl_2->2FeCl_3\)
c) \(2Al\left(OH\right)_3+3H_2SO_4->Al_2\left(SO_4\right)_3+6H_2O\)
d) \(4FeS_2+11O_2->2Fe_2O_3+8SO_2\)
e)\(2Al+6HCl->2AlCl_3+3H_2\)
f) \(2KClO_3->KCl+3O_2\)
g) \(4P+5O_2->2P_2O_5\)
h) \(3Fe+2O_2->Fe_3O_4\)
i) \(2Al+3CuSO_4->Al_2\left(SO_4\right)_3+3Cu\)
j) \(2K+2H_2O->2KOH+H_2\)
1. 2Al + 3Cl2 →___2AlCl3__
2. 4Na + O2 →_____2Na2O____
3. 2NaOH + CuSO4 → Cu(OH)2 ↓ +_Na2(SO4)____
4. Zn + 2HCl → __ZnCl2___+ H2↑
5.K2 +2 H2O → 2KOH + H2↑
1. 2Al + 3Cl2 \(\rightarrow\) 2AlCl3
2. 4Na + O2 → 2Na2O
3. 2NaOH + CuSO4 → Cu(OH)2 ↓ + Na2SO4
4. Zn + 2HCl → ZnCl2+ H2↑
5.2K + 2H2O → 2KOH + H2↑