Question

хелп 8 класс аааааа​

Answer 1

Ba -> BaO -> Ba(OH)2 -> BaSO4 -> BaCl2

2Ba + O2 -> 2BaO

BaO + H2O = Ba(OH)2

Ba(OH)2 + H2SO4 = BaSO4 + 2H2O

BaSO4 + 2HCl = BaCl2 + H2SO4