а)Cu--CuO--CuCl2--Cu(OH)2--CuO---CuSO4
б)AlCl3---Al(OH)3---Al2O3---Al2(SO4)3---Al(OH)3---Al(OH)2Cl
б)AlCl3---Al(OH)3---Al2O3---Al2(SO4)3---Al(OH)3---Al(OH)2Cl
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Answers & Comments
CuO+2HCl=CuCl2 +H2O
CuCl2+2NaOH=Cu(OH)2+ 2NaCl
Cu(OH)=CuO+H2O
CuO+H2SO4=CuSO4 +H2O
б)AlCl3+3NaOH=Al(OH)3 +3NaCl
2Al(OH)3=Al2O3 +3H2O
2AlCl3+3AgNO3=Al2(SO4)3 +3AgCl
Al2(SO4)3 +6NaOH=2Al(OH)3+3Na2SO4
Al(OH)3+HCl=Al(OH)2Cl +H2O