Question

thực hiện dãy biến hóa sau :

BaO--->BaCl2--->BaSO4

So3--->H2SO4--->BaSO4

Answer 1

a)

(1) BaO + 2HCl -> BaCl₂ + H₂\(\uparrow\)

(2) BaCl₂ + H₂SO₄ -> BaSO₄\(\downarrow\)+ HCl

b)

(1) SO₃ + H₂O -> H₂SO₄

(2) H₂SO₄ + BaCl₂ -> BaSO₄\(\downarrow\)+ HCl

Answer 2

a) (1) BaO + 2HCl -> BaCl2 + H2

(2) BaCl2 + H2SO4 -> BaSO4+ HCl

b) (1) SO3 + H2O -> H2SO4

(2) H2SO4 + BaCl2 -> BaSO4+ HCl