а)Zn+2HCl=ZnCl2=H2
b)Ca+H2O=Ca(OH)2+H2O (?)
в)H2+2Cl=2HCl
г)H2+CuO=Cu+H2O
Zn+2HCL⇒ZnCl₂+H₂
Ca+2H₂O⇒Ca(OH)₂+H₂
H2+2Cl=2HCL
CuO+H₂⇒Cu+H₂O
а)Zn+2HCl=ZnCl2=H2
b)Ca+H2O=Ca(OH)2+H2O (?)
в)H2+2Cl=2HCl
г)H2+CuO=Cu+H2O
Zn+2HCL⇒ZnCl₂+H₂
Ca+2H₂O⇒Ca(OH)₂+H₂
H2+2Cl=2HCL
CuO+H₂⇒Cu+H₂O