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Nikro1313
@Nikro1313
August 2022
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Решите цепочку превращений.
Zn-ZnO-ZnCl2-Zn(OH)2-ZnO-Zn
C-CO2-CaCO3-CO2-CaCO3-Ca(NO3)2
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фтвфкещт20
Zn->ZnO->ZnCl2->Zn(OH)2->ZnO->Zn
2 Zn+O2=2 ZnO
ZnO+2 HCl=ZnCl2+H2O
ZnCl2+2 NaOH=Zn(OH)2+2 NaCl
Zn(OH)2=ZnO+H2O
2 ZnO=2Zn+O2
C->CO2->CaCO3->CO2->CaCO3->Ca(NO3)2
C+O2=CO2
CO2+CaO=CaCO3
CaCO3=CaO+CO2
CaO+CO2=CaCO3
CaCO3+2 HNO3=Ca(NO3)2+CO2+H2O
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Answers & Comments
2 Zn+O2=2 ZnO
ZnO+2 HCl=ZnCl2+H2O
ZnCl2+2 NaOH=Zn(OH)2+2 NaCl
Zn(OH)2=ZnO+H2O
2 ZnO=2Zn+O2
C->CO2->CaCO3->CO2->CaCO3->Ca(NO3)2
C+O2=CO2
CO2+CaO=CaCO3
CaCO3=CaO+CO2
CaO+CO2=CaCO3
CaCO3+2 HNO3=Ca(NO3)2+CO2+H2O