Chapter 18, Problem 36E

(a)

Interpretation Introduction

Interpretation: The balance chemical reaction for the reaction of ${\text{SiO}}_{\text{2(s)}}$ with ${\text{C}}_{\text{(s)}}$ to form ${\text{Si}}_{\text{(s)}}$ and carbon monoxide gas needs to be determined.

  ${\text{SiO}}_{\text{2(s)}}{\text{ + C}}_{\text{(s)}}\underset{}{\to }{\text{ Si}}_{\text{(s)}}{\text{ + CO }}_{\text{(g)}}$

Concept Introduction: In the Long form of periodic table, the non-metals are mainly placed at the right side of the periodic table that is called as p-block elements. Metals make the 75 % part of the periodic table. Metals are electropositive elements and mainly form ionic compound whereas non-metals are electronegative elements and can form either covalent or ionic compounds.

(b)

Interpretation Introduction

Interpretation: The balance chemical reaction for the reaction of ${\text{SiCl}}_{\text{4}}$ with very pure Mg to form Si and magnesium chloride needs to be determined.

Concept Introduction: In the Long form of periodic table, the non-metals are mainly placed at the right side of the periodic table that is called as p-block elements. Metals make the 75 % part of the periodic table. Metals are electropositive elements and mainly form ionic compound whereas non-metals are electronegative elements and can form either covalent or ionic compounds.

(c)

Interpretation Introduction

Interpretation: The balance chemical reaction for the given reaction equation needs to be determined.

  ${\text{Na}}_{\text{2}}{\text{SiF}}_{\text{6(s)}}{\text{ + Na}}_{\text{(s)}}\stackrel{}{\to }{\text{Si}}_{\text{(s)}}{\text{ + NaF}}_{\text{(s)}}$

Concept Introduction: In the Long form of periodic table, the non-metals are mainly placed at the right side of the periodic table that is called as p-block elements. Metals make the 75 % part of the periodic table. Metals are electropositive elements and mainly form ionic compound whereas non-metals are electronegative elements and can form either covalent or ionic compounds.