Chapter 20.1, Problem 7LC

(a)

Interpretation Introduction

Interpretation: Whether ${\text{Cl}}_2$ is an oxidizing agent or reducing agent is to be found.

Concept introduction: The reaction in which oxidation and reduction take place simultaneously is a redox reaction. The process that involves the loss of electrons in a chemical reaction is referred to as oxidation. And the process that involves the gain of electrons in a chemical reaction is referred to as the reduction.

Answer to Problem 7LC

The given chemical species ${\text{Cl}}_2$ is oxidizing agent.

Explanation of Solution

The chemical species that undergo oxidation is a reducing agent while the one which undergoes reduction is the oxidizing agent.

The species, ${\text{Cl}}_2$ , chlorine is a chemical compound that is most likely to undergo reduction by gaining electrons. Thereby, resulting in the formation of ${\text{2Cl}}^{-}$ ions. So, it is an oxidizing agent.

(b)

Interpretation Introduction

Interpretation: Whether $\text{K}$ is an oxidizing agent or reducing agent is to be found.

Concept introduction: The reaction in which oxidation and reduction take place simultaneously is a redox reaction. The process that involves the loss of electrons in a chemical reaction is referred to as oxidation. And the process that involves the gain of electrons in a chemical reaction is referred to as the reduction.

Answer to Problem 7LC

The given chemical species $\text{K}$ is a reducing agent.

Explanation of Solution

The species $\text{K}$ , potassium is an element that most likely can undergo oxidation by the loss of electrons. Thereby, resulting in the formation of ${\text{K}}^{+}$ ions. So, it is a reducing agent.

(c)

Interpretation Introduction

Interpretation: Whether ${\text{Ag}}^{+}$ is an oxidizing agent or reducing agent is to be found.

Concept introduction: The reaction in which oxidation and reduction take place simultaneously is a redox reaction. The process that involves the loss of electrons in a chemical reaction is referred to as oxidation. And the process that involves the gain of electrons in a chemical reaction is referred to as the reduction.

Answer to Problem 7LC

The given chemical species ${\text{Ag}}^{+}$ is an oxidizing agent.

Explanation of Solution

The species ${\text{Ag}}^{+}$ , silver ion is a chemical compound that is most likely can undergo reduction by accepting one electron. Thereby, resulting in the formation of $\text{Ag}$ . So, it is an oxidizing agent.