Elemental silicon is oxidized by O2 to give anknown A. Compound A is dissolved in molten Na2CO3 giving B, When B was treated with aqueous hydrochloric acid, C is produced. Identify Compound C. Use balanced chemical equation to support your answer.
The balanced chemical equation for the oxidation of elemental silicon (Si) by O2 is:
2Si + O2 → 2SiO2
Compound A, which is formed by the reaction of SiO2 with molten Na2CO3, is sodium silicate (Na2SiO3):
SiO2 + Na2CO3 → Na2SiO3 + CO2
Compound B is sodium silicate (Na2SiO3).
When sodium silicate (Na2SiO3) is treated with aqueous hydrochloric acid (HCl), compound C is produced, which is silicic acid (H2SiO3):
Na2SiO3 + 2HCl → H2SiO3 + 2NaCl
The oxidation of elemental silicon (Si) by oxygen (O2) results in the formation of an unknown compound A. The balanced chemical equation for this reaction is:
2 Si + O2 → 2 SiO2
Compound A is then dissolved in molten sodium carbonate (Na2CO3), resulting in the formation of compound B. This reaction can be represented by the following balanced chemical equation:
Na2CO3 + SiO2 → Na2SiO3 + CO2
Compound B, upon treatment with aqueous hydrochloric acid (HCl), yields compound C. The balanced chemical equation for this reaction is:
Na2SiO3 + 2 HCl → H2SiO3 + 2 NaCl
Compound C is identified as orthosilicic acid (H2SiO3) based on the given information and the balanced chemical equation.