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ttdd
@ttdd
June 2022
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Решите пожалуйста 1 вариант)
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ramilvaliev96
1.
Si+2Mg=Mg2Si
Mg2Si+4H2O=2Mg(OH)2+SiH4
SiH4+2O2=SiO2+H2O
SiO2+4KOH=K2SiO3+2H2O
K2SiO3+2HCl=2KCl+H2SiO3
H2SiO3=H2O+SiO2
2.K2CO3
+ H
2O=2KOH + CO
2
CaO+CO2=CaCO
3
CaCO3+2HCl=CaCl2+CO+H2O
CaCl2+2AgNO3=Ca(NO3)2+2AgCl
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Answers & Comments
Si+2Mg=Mg2Si
Mg2Si+4H2O=2Mg(OH)2+SiH4
SiH4+2O2=SiO2+H2O
SiO2+4KOH=K2SiO3+2H2O
K2SiO3+2HCl=2KCl+H2SiO3
H2SiO3=H2O+SiO2
2.K2CO3 + H2O=2KOH + CO2
CaO+CO2=CaCO3
CaCO3+2HCl=CaCl2+CO+H2O
CaCl2+2AgNO3=Ca(NO3)2+2AgCl