Si+2Cl2=SiCl4
SiCl4+3H2O=4HCl+H2SiO3↓
H2SiO3=H2O+SiO2
SiO2+2NaOH=Na2SiO3+H2O
Na2SiO3+CO2=Na2CO3+SiO2↓
3Na2CO3+2Cr(NO3)3+3H2O=6NaNO3+
+2Cr(OH)3↓+3CO2↑
CO2+Ba(OH)2=BaCO3↓+H2O
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Verified answer
Si+2Cl2=SiCl4
SiCl4+3H2O=4HCl+H2SiO3↓
H2SiO3=H2O+SiO2
SiO2+2NaOH=Na2SiO3+H2O
Na2SiO3+CO2=Na2CO3+SiO2↓
3Na2CO3+2Cr(NO3)3+3H2O=6NaNO3+
+2Cr(OH)3↓+3CO2↑
CO2+Ba(OH)2=BaCO3↓+H2O