Cu --- CuO --- CuCl2 --- Cu(OH)2 --- Cu(NO3)2 --- CuS написать уравнения реакций
1) 2Cu+O2=2CuO 2) CuO + 2HCl(разб.) = CuCl2 + H2O 3) CaOH2+CuCl2=CuOH2+CaCl2 4) 2HNO3+CuOH2=CuNO32+2H2O 5)Cu(NO3)2 + Na2S = CuS + 2NaNO3