Question

Решите систему превращений

Answer 1

2Zn+O2=2ZnO, ZnO+H2SO4=ZnSO4+H2O, ZnSO4+ 2H2O=Zn(OH)2+ H2SO4, Zn(OH)2=ZnO+H2O при нагревании

Answer 2

СH4+O2--kat-->HCOH+H2O
HCOH+H2-->CH3OH
CH3OH+NaCL-->CH3CL+NaOH
2CH3CL+2Na-->C2H6+2NaCL
C2H6+CL2-->C2H5CL+HCL
C2H5CL+NaOH-->C2H5OH+NaCL
C2H5OH+O2-->CH3COOH+H2O
CH3COOH+NaOH-->CH3COONa+H2O
CH3COONa+NaOН-->CH4+Na2CO3(Реакция сплавления)