Cuso4-->cu(oh)2-->cuo-->cuso4

Question

Cuso4-->cu(oh)2-->cuo-->cuso4

Answer 1

CuSO4+2NaOH-Cu(OH)2+Na2SO4
Cu(OH)2=(температура) СuO+H2O
CuO+H2SO4=CuSO4+H2O