1. 2Al + 6HCl -> 2AlCl3 + 3H2
2. 4P + 5O2 -to> 2P2O5
3. Fe3O4 + 4H2 -to> 3Fe + 4H2O
4. BaO + H2O -> Ba<OH>2
Mình thay dấu ngoặc đơn là dấu ngoặc kép nha.
1. 2Al + 6HCl -> 2AlCl3 + 3H2
2. 4P + 5O2 -> 2P2O5 (thêm to nhé)
3. Fe3O4 + 4H2 -> 3Fe + 4H2O
4. BaO + H2O -> Ba(OH)2
2Al + 6HCl -> 2AlCl3 + 3H2
4P + 5O2 ->2 P2O5
Fe3O4 + 4H2 -> 3Fe + 4H2O
BaO + H2O -> Ba(OH)2
1) 2Al+ 6HCl\(\rightarrow\) 2AlCl3+ 3H2
2) 4P+ 5O2\(\xrightarrow[]{to}\) 2P2O5
3) Fe3O4+ 4H2\(\xrightarrow[]{to}\) 3Fe+ 4H2O
4) BaO+ H2O\(\rightarrow\) Ba(OH)2