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Favit123
@Favit123
November 2021
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осуществите химические превращения по таким схемам
а)Сu⇒CuO⇒CuCl2 ⇒Cu(OH)2
B)C⇒CO2⇒K2CO3⇒CO2
D)Fe2(SO4)3⇒Fe(OH)3⇒Fe2O3
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darinka2795634
А)2Сu+O2=2CuO
CuO+2HCI=CuCI2+H2O
CuCI2+2KOH=Cu(OH)2+2KCI
б)C+O2=CO2
CO2+2KOH=K2CO3+H2O
K2CO3+H2SO4=K2SO4+CO2+H2O
в)Fe2(SO4)3+6NaOH=2Fe(OH)3+3Na2SO4
2Fe(OH)3--t-->Fe2O3+3H2O
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Answers & Comments
CuO+2HCI=CuCI2+H2O
CuCI2+2KOH=Cu(OH)2+2KCI
б)C+O2=CO2
CO2+2KOH=K2CO3+H2O
K2CO3+H2SO4=K2SO4+CO2+H2O
в)Fe2(SO4)3+6NaOH=2Fe(OH)3+3Na2SO4
2Fe(OH)3--t-->Fe2O3+3H2O