1)2Cu+O2=2CuO
2)CuO+H2O=Cu(OH)2
3)Cu(OH)2+H2SO4=CuSO4+2H2O
4)CuSO4+2NaOH=Cu(OH)2(осадок)+Na2SO4
5)Cu(OH)2=CuO+H2O
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Answers & Comments
1)2Cu+O2=2CuO
2)CuO+H2O=Cu(OH)2
3)Cu(OH)2+H2SO4=CuSO4+2H2O
4)CuSO4+2NaOH=Cu(OH)2(осадок)+Na2SO4
5)Cu(OH)2=CuO+H2O