Question

Silicon is produced for the chemical and electronics industries by the following reactions. Give the balanced equation for each reaction.

a.$\mathit{S}\mathit{i}{\mathit{O}}_{\mathbf{2}}\mathbf{\left(}\mathit{s}\mathbf{\right)}\mathbf{+}\mathit{C}\mathbf{\left(}\mathit{s}\mathbf{\right)}\mathbf{\to }\mathit{S}\mathit{i}\mathbf{\left(}\mathit{s}\mathbf{\right)}\mathbf{+}\mathit{C}\mathit{O}\mathbf{\left(}\mathit{g}\mathbf{\right)}$

b. Silicon tetrachloride is reacted with very pure magnesium, producing silicon and magnesium chloride.

c.$\mathit{N}{\mathit{a}}_{\mathbf{2}}\mathit{S}\mathit{i}{\mathit{F}}_{\mathbf{6}}\mathbf{\left(}\mathit{s}\mathbf{\right)}\mathbf{+}\mathit{N}\mathit{a}\mathbf{\left(}\mathit{s}\mathbf{\right)}\mathbf{\to }\mathit{S}\mathit{i}\mathbf{\left(}\mathit{s}\mathbf{\right)}\mathbf{+}\mathit{N}\mathit{a}\mathit{F}\mathbf{\left(}\mathit{s}\mathbf{\right)}$

Short answer

a. The balanced equation is$Si{O}_2\left(s\right)+2C\left(s\right)\to Si\left(s\right)+2CO\left(g\right)$

b. The balanced equation is$SiC{l}_4\left(s\right)+2Mg\left(s\right)\to Si\left(s\right)+2MgC{l}_2\left(s\right)$

c. The balanced equation is$N{a}_{2}Si{F}_6\left(s\right)+4Na\left(s\right)\to Si\left(s\right)+6NaF\left(s\right)$

Step-by-step solution

Definition of silicon and magnesium chloride

• Silicon is a term used to describe a type of material : A tetravalent nonmetallic element that occurs in combination as the most abundant element in the earth's crust, second only to oxygen, and is employed mostly in steelmaking, other alloys, and semiconductors.
• Magnesium chloride is an inorganic salt (compound) having the chemical formula MgCl2.
• It contains one magnesium ion and two chloride ions. MgCl₂(H₂O)_x is the formula for its different hydrates.
• It's utilised in alloys and as a cathartic. The magnesium chloride salt is a common ionic halide that is very water soluble.

Determine the balanced equation for SiO2(s)+C(s)→Si(s)+CO(g)

(a)

Write the imbalanced reaction of silicon dioxide and carbon, which produces silicon and carbon(II) oxide, first.

Below is an example of an imbalanced reaction.

$Si{O}_2\left(s\right)+C\left(s\right)\to Si\left(s\right)+CO\left(g\right)$

Subscripts and coefficients are the two sorts of numbers that appear in chemical equations. As a result, the coefficients must be adjusted to achieve the equal amount of atoms of each element on both sides.

It can observe that there are two oxygen atoms on the left side and only one on the right.

As a result, the carbon(II) oxide has a coefficient of 2 in front of it.

$Si{O}_2\left(s\right)+2C\left(s\right)\to Si\left(s\right)+2CO\left(g\right)$

Determine the balanced equation for the reaction

Create an imbalanced equation for the reaction of silicon tetrachloride with pure magnesium to produce silicon and magnesium chloride.

Below is an example of an unbalanced equation.

$SiC{l}_4\left(s\right)+Mg\left(s\right)\to Si\left(s\right)+MgC{l}_2\left(s\right)$

To get the same number of atoms of each element on both sides, the coefficients must be adjusted.

It can observe that there are four chlorine atoms on the left side and just two on the right. As a result, $MgCl$has the coefficient 2 in front of it.

There are two magnesium atoms on the right side and just one on the left when the coefficient 2 is placed in front of $MgC{l}_2$.

Place the coefficient 2 in front of Mg.

$SiC{l}_4\left(s\right)+2Mg\left(s\right)\to Si\left(s\right)+2MgC{l}_2\left(s\right)$

State the balanced equation for Na2SiF6(s)+Na(s)→Si(s)+NaF(s)

(C)

Write the unbalanced equation for the reaction between sodium fluorosilicate and sodium that produces silicon and sodium fluoride.

Below is an example of an unbalanced equation.

$N{a}_{2}S{F}_6\left(s\right)+Na\left(s\right)\to Si\left(s\right)+NaF\left(s\right)$

To get the equal amount of atoms of each element on both sides, the coefficients must be adjusted.

Observe that there are six fluorine atoms on the left side and only one on the right.

As a result, sodium fluoride has a coefficient of 6 in front of it. the two sides of the equation

$N{a}_{2}Si{F}_6\left(s\right)+4Na\left(s\right)\to Si\left(s\right)+6NaF\left(s\right)$