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3. Efectuati urmatoarele transformari:
Cu(OH)2=CuO=CuCl2=CuSO4=S03=H2SO4=Al2(SO4)3=Al​


Răspuns :

Cu(OH)2 --toC--> CuO + H2O

CuO + 2HCl --> CuCl2 + H2O

CuCl2 + H2SO4 --> CuSO4 + 2HCl

CuSO4 --toC--> CuO + SO3

SO3 + 8HCl --> H2S + 3H2O + 4Cl2