Question

Допишите реакции
CaO+HCl->
Ag+H2So4->
So3+HCl->

Answer 1

$CaO$+2$HCl$=$CaCl_{2}$+$H_{2} O$
2$H_{2}SO_{4}$+2$Ag$=$Ag_{2}SO_{4}$+$SO_{2}$+2$H_{2}O$
$SO_{3}$+$HCl$=$HSO_{3}Cl$