Question

Cus-> So2 >So3 >mgso4> na2so4 >baso4​

Answer 1

2CuS + 3O₂ →t→ 2CuO + 2SO₂↑

2SO₂ + O₂ →t,кат→ 2SO₃

SO₃ + Mg(OH)₂ → MgSO4 + H₂O

MgSO4 + 2NaOH → Na₂SO4 + Mg(OH)₂↓

Na₂SO4 + Ba(OH)₂ → BaSO4↓ + 2NaOH