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Настёныш15
@Настёныш15
June 2022
1
6
Report
Осуществите превращения
1)
C ⇒ Al4C3 ⇒ CH4 ⇒ CO2 ⇒ CaCO3 ⇒ CaHCO3 ⇒ CaCO3 ⇒ CO2 ⇒ CO ⇒HCOONa ⇒ Na2SO4
2)
SiO ⇒ Si ⇒ MgSiO3 ⇒ SiH4 ⇒ SiO2 ⇒ K2SiO3 ⇒ H2SiO3 ⇒ SiO2 ⇒ SiF4
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Answers & Comments
Дедище
4Al + 3C = Al4C3
Al4C3 + 12H2O = 4Al(OH)3↓ + 3CH4↑
CH4 + 2O2 = CO2 + 2H2O
Ca(OH)2 + CO2 = CaCO3 ↓ + H2O
CaCO3 + CO2 + H2O = Ca(HCO3)2
Ca(HCO3)2 = CaCO3 + CO2 + H2O
CaCO3 = CaO + CO2
CO2 + C = 2COCO + NaOH = HCOONa
2HCOONa + H2SO4 = 2HCOOH + Na2SO4
--------------------------------------------------------
SiO2 + 2Mg = 2MgO + Si
Si + O2 = SiO2
SiO2 + MgO = MgSiO3
MgSiO3 = MgO + SiO2
4Mg + SiO2 = Mg2Si + 2MgO
Mg2Si + H2SO4 = 2MgSO4 + SiH4
SiH4 + 2O2 = SiO2 + 2H2O
SiO2 + K2CO3 = K2SiO3 + CO
2
K2SiO3 + 2HCl = H2SiO3 +2KCl
H2SiO3 = H2O + SiO2
SiO2
+ 4HF
= SiF
4
+ 2H
2
O
2 votes
Thanks 1
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Answers & Comments
Al4C3 + 12H2O = 4Al(OH)3↓ + 3CH4↑
CH4 + 2O2 = CO2 + 2H2O
Ca(OH)2 + CO2 = CaCO3 ↓ + H2O
CaCO3 + CO2 + H2O = Ca(HCO3)2
Ca(HCO3)2 = CaCO3 + CO2 + H2O
CaCO3 = CaO + CO2
CO2 + C = 2COCO + NaOH = HCOONa
2HCOONa + H2SO4 = 2HCOOH + Na2SO4
--------------------------------------------------------
SiO2 + 2Mg = 2MgO + Si
Si + O2 = SiO2
SiO2 + MgO = MgSiO3
MgSiO3 = MgO + SiO2
4Mg + SiO2 = Mg2Si + 2MgO
Mg2Si + H2SO4 = 2MgSO4 + SiH4
SiH4 + 2O2 = SiO2 + 2H2O
SiO2 + K2CO3 = K2SiO3 + CO2
K2SiO3 + 2HCl = H2SiO3 +2KCl
H2SiO3 = H2O + SiO2
SiO2 + 4HF = SiF4 + 2H2O