Question

BaO→BaCl2→Ba(OH)2→Ba(NO3)2→BaSO4

Answer 1

Ответ:

2Ba+O2=2BaO

BaO+2HCl=BaCl2+H2O

BaCl2+2H2O=Ba(OH)2+2HCl

Ba(OH)2+Mg(NO3)2=Ba(NO3)2+Mg(OH)2

Ba(NO3)2+K2SO4=BaSO4+2KNO3