Написать уравнения реакции: CuSO4 --- Cu(OH)2 --- CuO --- Cu
Cu+H2SO4=CuSO4+H2 CuSO4+2H2O= Cu(OH)2 +H2SO4 Cu(OH)2+H2O=CuO+2H2O CuO+H2=Cu+H2O