Na2O+H2O->2NaOH
2Na+2H2O->2NaOH+H2
2Al(OH)3-to>Al2O3+3H2O
Al2O3+6HCl->2AlCl3+3H2O
2Al+6HCl->2Alcl3+3H2
FeO+2HCl->FeCl2+H2
Fe2O3+3H2SO4->Fe2(SO4)3+3H2O
2NaOH+H2SO4->Na2SO4+H2O
3Ca(OH)2+2FeCl3->2Fe(OH)3+3CaCl2
BaCl2+H2SO4->BaSO4+2HCl
1. Na2O + H2O ---> 2NaOH
2. 2Na + 2H2O ---> 2NaOH + H2↑
3. 2Al(OH)3 ---to---> Al2O3 + 3H2O
4. Al2O3 + 3HCl ---> 2AlCl3 + 3H2O
5. 2Al + 6HCl ---> 2AlCl3 + 3H2↑
6. FeO + 2HCl ---> FeCl2 + H2O
7. Fe2O3 + 3H2SO4 ---> Fe2(SO4)3 + 3H2O
8. 2NaOH + H2SO4 ---> Na2SO4 + 2H2O
9. 3Ca(OH)2 + 2FeCl3 ---> 3CaCl2 + 2Fe(OH)3↓
10. BaCl2 + H2SO4 ---> BaSO4↓ + 2HCl
