Question

Напишите превращения: Ba➡BaO➡Ba(OH)2➡BACI2➡BaSO4

Answer 1

2Ba + O2 = 2BaO
BaO + H2O = Ba(OH)2
Ba(OH)2+NaCl=BaCl2+Na(OH)2
BaCl2+H2SO4=BaSO4+2HCl

Answer 2

2Ba + O2 -> 2BaO
 BaO + H2O -> Ba(OH)2
 Ba(OH)2 + 2HCl -> BaCl2 + 2H2O
 BaCl2 + H2SO4 -> BaSO4↓ + 2HCl