1)______+H2——>Cu+H2O
2)FeO+______——>Fe+H2O
3)Fe2O3+_______——->Fe+H2O
4)______+H2—–>Zn+H2O
5)Fe3O4+_______——>Fe+H2O
6)______+H2—–>Pb+H2O
1)______+H2——>Cu+H2O
2)FeO+______——>Fe+H2O
3)Fe2O3+_______——->Fe+H2O
4)______+H2—–>Zn+H2O
5)Fe3O4+_______——>Fe+H2O
6)______+H2—–>Pb+H2O
1 ) cuo
2 ) h2
4 ) ZnO
3 )3 h2 …… 2 Fe + 3H20
5 ) 2H2 ….. 3fE + 3H2O
6 ) PbO
Đáp án: 1. CuO
2. $H_{2}$
3. $H_{2}$ (cân bằng pt nha)
4. ZnO
5. $H_{2}$ (cân bằng pt nha)
6. PbO