Silicon is produced for the chemical and electronics...

Silicon is produced for the chemical and electronics industries by the following reactions. Give the balanced equation for each reaction. a. $\mathrm{SiO}_{2}(s)+\mathrm{C}(s) \longrightarrow \mathrm{Si}(s)+\mathrm{CO}(g)$ b. Silicon tetrachloride is reacted with very pure magnesium, producing silicon and magnesium chloride. c. $\mathrm{Na}_{2} \mathrm{SiF}_{6}(s)+\mathrm{Na}(s) \longrightarrow \mathrm{Si}(s)+\mathrm{NaF}(s)$

Silicon is produced for the chemical and electronics industries by the following reactions. Give the balanced equation for each reaction.
a. $\mathrm{SiO}_{2}(s)+\mathrm{C}(s) \longrightarrow \mathrm{Si}(s)+\mathrm{CO}(g)$
b. Silicon tetrachloride is reacted with very pure magnesium, producing silicon and magnesium chloride.
c. $\mathrm{Na}_{2} \mathrm{SiF}_{6}(s)+\mathrm{Na}(s) \longrightarrow \mathrm{Si}(s)+\mathrm{NaF}(s)$

Key Concepts

Balanced Chemical Equations

Balanced chemical equations are mathematical representations of chemical reactions where the number of atoms for each element is the same on both sides of the reaction. This is achieved by adjusting the stoichiometric coefficients, ensuring compliance with the law of conservation of mass, which is essential in all areas of chemistry.

Stoichiometry

Stoichiometry is the study of quantitative relationships in chemical reactions. It involves calculating the amounts of reactants and products through the balanced chemical equation, which is fundamental in predicting yields and scaling up reactions, including industrial processes like silicon production.

Reduction Reactions

Reduction reactions involve the gain of electrons by a substance, often resulting in the transformation of compounds into their elemental forms. In processes such as silicon production, reduction reactions are used to convert silicon compounds into pure silicon, making this concept pivotal in understanding the underlying chemistry.

Industrial Synthesis of Silicon

The industrial synthesis of silicon typically involves reduction reactions where silicon dioxide or other silicon compounds are combined with reducing agents. Mastering the balanced chemical equations for these processes is crucial for ensuring efficiency and purity in the production of silicon for chemical and electronic industries.