FE2O3 + 3H2 −TO→ 2FE + 3H2O ZN + 2HCL  ZNCL2 + H2 ZN + 2...

Câu 8: Fe

2

O

3

+ 3H

2

−t

^o

→ 2Fe + 3H

2

O Zn + 2HCl  ZnCl

2

+ H

2

Na + H

2

O  NaOH + 1/2H

2

↑ KClO

3

−t

^o

→ KCl + 3/2O

2

↑