Ответ:
CU+O=CUO
CUO+CL2=CUCL2+O2
CUCL2+NAOH=CU(OH)2+NACL2
CU(OH)2+H2SO4=CUSO4+2H2O
CUSO4+AL=AL2(SO4)3+CU
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Ответ:
CU+O=CUO
CUO+CL2=CUCL2+O2
CUCL2+NAOH=CU(OH)2+NACL2
CU(OH)2+H2SO4=CUSO4+2H2O
CUSO4+AL=AL2(SO4)3+CU