Question

ЦЕПОЧКА ПРЕВРАЩЕНИЙ
1. Mg(OH)2=MgO=Mg(NO3)2=MgSO4=MgCl2

Answer 1

$Mg(OH) _{2} =MgO=Mg(NO _{3} ) _{2} =MgSO _{4} =MgCl _{2} \ \ 1)Mg(OH) _{2} =MgO+H_{2} O \ 2)MgO+2HNO_{3} =Mg(NO _{3} )_{2} +H_{2} O \ 3)Mg(NO _{3} ) _{2} +H _{2} SO _{4} =MgSO _{4} +2HNO_{3} \ 4)MgSO _{4} +2HCl=MgCl_{2} +H _{2} SO _{4}$