Na2SO4+BaSO4=? H2SO4+CaO=? H2SO4+Cu(OH)2=? Cu(OH)2=?

Question

Na2SO4+BaSO4=?
H2SO4+CaO=?
H2SO4+Cu(OH)2=?
Cu(OH)2=?

Answer 1

Na₂SO₄ + BaSO₄ =/=
H₂SO₄ + CaO = CaSO₄ + H₂O
H₂SO₄ + Cu(OH)₂ = CuSO₄ + 2H₂O
Cu(OH)₂ =t= CuO + H₂O