решите плиз!* 8 класс! прошуууу

Question

решите плиз!* 8 класс! прошуууу

---

---

Answer 1

5)2K+H2=2KH

S+H2=H2S

Cl2+H2=2HCl

C+2H2=CH4

FeO+H2=Fe+H2O

Fe2O3+3H2=2Fe+3H2O

Fe3O4+4H2=3Fe+4H2O

PbO+H2=Pb+H2O

WO3+3H2=W+3H2O

ZnO+H2=Zn+H2O

7)H2O2=O2=SO2

2H2O2=2H2O+O2

S+O2=SO2

HgO=O2=P2O5

2HgO=2Hg+O2

4P+5O2=2P2O5

KMnO4=O2=CuO=Cu

2KMnO4=K2MnO4+MnO2+O2

2Cu+O2=2CuO

CuO+H2=Cu+H2O