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

Answer 2

Na2SO4 + BaSO4

The reaction between Na2SO4 (sodium sulfate) and BaSO4 (barium sulfate) does not result in a reaction. Therefore, no new compounds are formed.

H2SO4 + CaO

The reaction between H2SO4 (sulfuric acid) and CaO (calcium oxide) results in the formation of CaSO4 (calcium sulfate) and H2O (water). The balanced chemical equation for this reaction is:

H2SO4 + CaO → CaSO4 + H2O

H2SO4 + Cu(OH)2

The reaction between H2SO4 (sulfuric acid) and Cu(OH)2 (copper hydroxide) results in the formation of CuSO4 (copper sulfate) and H2O (water). The balanced chemical equation for this reaction is:

H2SO4 + Cu(OH)2 → CuSO4 + 2H2O

Cu(OH)2

Cu(OH)2 (copper hydroxide) can be further reacted with other substances to form different compounds. For example, when Cu(OH)2 reacts with H2SO4 (sulfuric acid), it forms CuSO4 (copper sulfate) and H2O (water) [[2]](https://inmt.urfu.ru/fileadmin/user_upload/site_15053/zaochno/Departament_metallurgii_osn_stranica/KHimija/KHimija._Uchebnoe_posobie..pdf).