Напишите реакции приведенных ниже генетических связей: а)Cu→CuO→CuCl2→Cu(OH)2→CuO→CuSO4 б)AlCl3→Al(OH)3→Al2O3→Al2(SO4)3→Al(OH)3→Al(OH)2Cl в)Na2O→NaOH→NaHSO4→Na2SO4→SO3 г)CaCO3→CaO→Ca(OH)2→Ca(HCO3)2→CO2
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а)Cu→CuO→CuCl2→Cu(OH)2→CuO→CuSO4
2Cu + O2 = 2CuO
CuO + 2HC1(разб.) = CuCl2 + H2O
CuCl2 + 2NaOH(разб.) = Cu(OH)2↓ + 2NaCl
Cu(OH)2 = CuO + H2O
CuO + H2SO4 = CuSO4 + H2O
б)AlCl3→Al(OH)3→Al2O3→Al2(SO4)3→Al(OH)3→Al(OH)2Cl
AL2(SO4)3+ 6NaOH=2AL(OH)3+3Na2SO4
2AL(OH)3=AL2O3+3H2O
AL2O3+6HCL=2ALCL3+3H2O
ALCL3+3NaOH=AL(OH)3+3NaCL
AL(OH)3+HCL=AL(OH)2CL+H2O
в)Na2O→NaOH→NaHSO4→Na2SO4→SO3
Na2O+Н2О=2NaOH
NaOH+H2SO4=NaHSO4+Н2О
NaHSO4+NaOH=Na2SO4+Н2О
Na2SO4+H2O=NaOH+SO3
г)CaCO3→CaO→Ca(OH)2→Ca(HCO3)2→CO2
CaCO3+CaO+CO2
CaO+H2O=Ca(OH)2
Ca(OH)2+2CO2=Ca(HCO3)2
Ca(HCO3)2=CaCO3+CO2+H2O
а)1)Cu+O2=2CuO
2)CuO+2HCl=CuCl2+H2O
6)Cu(OH)2 +H2SO4=CuSo4+2H2O