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ZczCaverty
@ZczCaverty
March 2022
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Напишите уравнения реакций, характеризующие следующие превращения:
a) ZnO--->ZnSO4--->Zn(OH)2--->Na2ZnO2--->ZnCI2;
б) Zn--->ZnO--->Zn(NO3)2--->ZnCO3--->ZnCI2.
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HelterSkelter
A) ZnO+H2SO4=ZnSO4+H2O
ZnSO4+2NaOH=Na2SO4+Zn(OH)2
Zn(OH)2+2NaOH=Na2ZnO2+2H2O
Na2ZnO2+4HCl=2NaCl+ZnCl2+2H2O
б) 2Zn+O2=2ZnO
ZnO+N2O5=Zn(NO3)2
Zn(NO3)2+Na2CO3=ZnCO3+2NaNO3
ZnCO3+2HCl=H2O+CO2+ZnCl2
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Answers & Comments
ZnSO4+2NaOH=Na2SO4+Zn(OH)2
Zn(OH)2+2NaOH=Na2ZnO2+2H2O
Na2ZnO2+4HCl=2NaCl+ZnCl2+2H2O
б) 2Zn+O2=2ZnO
ZnO+N2O5=Zn(NO3)2
Zn(NO3)2+Na2CO3=ZnCO3+2NaNO3
ZnCO3+2HCl=H2O+CO2+ZnCl2