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enragenoname
@enragenoname
November 2021
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Цепочку превращений! СРОЧНО!!!
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ЯковПервый
1) SiO2 + 2KOH = K2SiO3 + H2O
K2SiO3 + 2HCl = 2KCl + H2SiO3
H2SiO3 =(t°)= SiO2 + H2O
2) SiO2 + 2Mg = 2MgO + Si
Si + 2Mg = Mg2Si
Mg2Si + 4HCl = 2MgCl2 + SiH4
SiH4 + 2O2 = SiO2 + 2H2O
SiO2 + 6HF = H2[SiF6] + 2H2O
3) Si + 2Cl2 = SiCl4
SiCl4 + 3H2O = H2SiO3 + 4HCl
H2SiO3 =(t°)= SiO2 + H2O
SiO2 + 3C = SiC + 2CO
4) Si + 2NaOH + H2O = Na2SiO3 + 2H2
Na2SiO3 + 2HCl = 2NaCl + H2SiO3
H2SiO3 =(t°)= SiO2 + H2O
SiO2 + 6HF = H2[SiF6] + 2H2O
5) SiO2 + 2NaOH = Na2SiO3 + H2O
Na2SiO3 + 2HCl = 2NaCl + H2SiO3
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Answers & Comments
K2SiO3 + 2HCl = 2KCl + H2SiO3
H2SiO3 =(t°)= SiO2 + H2O
2) SiO2 + 2Mg = 2MgO + Si
Si + 2Mg = Mg2Si
Mg2Si + 4HCl = 2MgCl2 + SiH4
SiH4 + 2O2 = SiO2 + 2H2O
SiO2 + 6HF = H2[SiF6] + 2H2O
3) Si + 2Cl2 = SiCl4
SiCl4 + 3H2O = H2SiO3 + 4HCl
H2SiO3 =(t°)= SiO2 + H2O
SiO2 + 3C = SiC + 2CO
4) Si + 2NaOH + H2O = Na2SiO3 + 2H2
Na2SiO3 + 2HCl = 2NaCl + H2SiO3
H2SiO3 =(t°)= SiO2 + H2O
SiO2 + 6HF = H2[SiF6] + 2H2O
5) SiO2 + 2NaOH = Na2SiO3 + H2O
Na2SiO3 + 2HCl = 2NaCl + H2SiO3