Thực hiện sơ đồ chuyển hóa sau:
a)CuO->H2O->KOH
b)Zn->H2->H2O->H2SO4->ZnSO4
Thực hiện sơ đồ chuyển hóa sau: a)CuO->H2O->KOH b)Zn->H2->H2O->H2SO4->ZnSO4
By Adalyn
By Adalyn
Thực hiện sơ đồ chuyển hóa sau:
a)CuO->H2O->KOH
b)Zn->H2->H2O->H2SO4->ZnSO4
a)
$CuO_{}$ + $H_{2}$ → $Cu_{}$ + $H_2O_{}$
$K_{2}O$ + $H_{2}O$ → $2KOH_{}$
b)
$Zn_{}$ + $H_2SO_{4}$ → $ZnSO_{4}$ + $H_{2}$
$2H_{2}$ + $O_{2}$ → $2H_{2}O$
$SO_{3}$ + $H_{2}O$ → $H_2SO_{4}$ + $Zn_{}$ $ZnSO_{4}$ + $H_{2}$
$H_2SO_{4}$+ $Zn_{}$ → $ZnSO_{4}$ + $H_{2}$
a, $CuO\xrightarrow{\ \ (1)\ \ } H_2O \xrightarrow{\ \ (2)\ \ } KOH$
$(1):\ CuO+H_2\xrightarrow{t^o} Cu+H_2O$
$(2):\ H_2O+K_2O\to 2KOH$
b, $Zn\xrightarrow{\ \ (1)\ \ } H_2\xrightarrow{\ \ (2)\ \ } H_2O\xrightarrow{\ \ (3)\ \ }H_2SO_4 \xrightarrow{\ \ (4)\ \ } ZnSO_4$
$(1):\ Zn+2HCl\to ZnCl_2+H_2$
$(2):\ 2H_2+O_2\xrightarrow{t^o} 2H_2O$
$(3):\ H_2O+SO_3\to H_2SO_4$
$(4):\ H_2SO_4+Zn\to ZnSO_4+H_2$