Ba -> BaO: Ba^2+ + O^2- -> BaO
BaO -> Ba(OH)2: BaO + 2H2O -> Ba(OH)2
Ba(OH)2 -> BaCl2: Ba(OH)2 + 2HCl -> BaCl2 + 2H2O
BaCl2 -> BaSO4: BaCl2 + Na2SO4 -> BaSO4↓ + 2NaCl
Ba -> BaO:
Ba^2+ + O^2- -> BaO
BaO -> Ba(OH)2:
BaO + 2H2O -> Ba(OH)2
Ba(OH)2 -> BaCl2:
Ba(OH)2 + 2HCl -> BaCl2 + 2H2O
BaCl2 -> BaSO4:
BaCl2 + Na2SO4 -> BaSO4↓ + 2NaCl