Chapter 9.2, Problem 10SP

(a)

Interpretation Introduction

Interpretation: The formula of the compound formed by the given pairs of ions is to be stated.

Concept Introduction: Molecular compounds are formed by the sharing of electrons between non-metals. They are known as carbon compounds. The naming of the compound is $\text{Name}\text{of}\text{first}\text{element}+\text{Stem}\text{of}\text{second}\text{element}+\text{'}ide\text{'}$

Ionic compounds are formed by the transfer of electrons between metal and non-metal. They are named as $\text{Name}\text{of}\text{metal}+\text{Stem}\text{of}\text{non-metal}+\text{'}ide\text{'}$

Answer to Problem 10SP

The formula of the compound is $\text{BaS}$ .

Explanation of Solution

The given ions are ${\text{Ba}}^{2+}$ and ${\text{S}}^{2-}$ . By the criss-cross method, the formula of the compound is $\text{BaS}$ .

(b)

Interpretation Introduction

Interpretation: The formula of the compound formed by the given pairs of ions is to be stated.

Concept Introduction: Molecular compounds are formed by the sharing of electrons between non-metals. They are known as carbon compounds. The naming of the compound is $\text{Name}\text{of}\text{first}\text{element}+\text{Stem}\text{of}\text{second}\text{element}+\text{'}ide\text{'}$

Ionic compounds are formed by the transfer of electrons between metal and non-metal. They are named as $\text{Name}\text{of}\text{metal}+\text{Stem}\text{of}\text{non-metal}+\text{'}ide\text{'}$

Answer to Problem 10SP

The formula of the compound is ${\text{Li}}_2\text{O}$ .

Explanation of Solution

The given ions are ${\text{Li}}^{+}$ and ${\text{O}}^{2-}$ . By the criss-cross method, the formula of the compound is ${\text{Li}}_2\text{O}$ .

(c)

Interpretation Introduction

Interpretation: The formula of the compound formed by the given pairs of ions is to be stated.

Concept Introduction: Molecular compounds are formed by the sharing of electrons between non-metals. They are known as carbon compounds. The naming of the compound is $\text{Name}\text{of}\text{first}\text{element}+\text{Stem}\text{of}\text{second}\text{element}+\text{'}ide\text{'}$

Ionic compounds are formed by the transfer of electrons between metal and non-metal. They are named as $\text{Name}\text{of}\text{metal}+\text{Stem}\text{of}\text{non-metal}+\text{'}ide\text{'}$

Answer to Problem 10SP

The formula of the compound is ${\text{Ca}}_{\text{3}}{\text{N}}_{\text{2}}$ .

Explanation of Solution

The given ions are ${\text{Ca}}^{2+}$ and ${\text{N}}^{3-}$ . By the criss-cross method, the formula of the compound is ${\text{Ca}}_{\text{3}}{\text{N}}_{\text{2}}$ .

(d)

Interpretation Introduction

Interpretation: The formula of the compound formed by the given pairs of ions is to be stated.

Concept Introduction: Molecular compounds are formed by the sharing of electrons between non-metals. They are known as carbon compounds. The naming of the compound is $\text{Name}\text{of}\text{first}\text{element}+\text{Stem}\text{of}\text{second}\text{element}+\text{'}ide\text{'}$

Ionic compounds are formed by the transfer of electrons between metal and non-metal. They are named as $\text{Name}\text{of}\text{metal}+\text{Stem}\text{of}\text{non-metal}+\text{'}ide\text{'}$

Answer to Problem 10SP

The formula of the compound is ${\text{CuI}}_{\text{2}}$ .

Explanation of Solution

The given ions are ${\text{Cu}}^{2+}$ and ${\text{I}}^{-}$ . By the criss-cross method, the formula of the compound is ${\text{CuI}}_{\text{2}}$ .