Chapter 4.5, Problem 4.19BFP

(a)

Interpretation Introduction

Interpretation:

Whether the given redox reaction is a combination, decomposition, or displacement reaction is to be classified and molecular equation, net ionic equation, and the total ionic equation are to be written. Also, the oxidizing and reducing agent is to be identified.

$\text{Co}\left(s\right)+\text{HCl}\left(aq\right)\to {\text{CoCl}}_2\left(aq\right)+{\text{H}}_2\left(g\right)$

Concept introduction:

There are three types of equations that are utilized to represent an ionic reaction:

1. Molecular equation

2. Total ionic equation

3. Net ionic equation

The molecular equation represents the reactants and products of the ionic reaction in undissociated form. In total ionic reaction, all the dissociated ions that are present in the reaction mixture are represented and in net ionic reaction, the useful ions that participate in the reaction are represented.

Spectator ions are the ions that are not a part of the actual chemical change but are present in the reaction mixture to balance the charge on both sides of the reaction. They are represented in the total ionic reaction. These are the dissolved ions present in the reaction mixture.

A redox reaction is a type of reaction that involves the change in oxidation number of a molecule, atom or ion changes due to the transfer of an electron from one species to another.

The redox reaction can be classified into three types depending upon the number of reactants and products as follows:

1. Combination redox reaction.

2. Decomposition redox reaction.

3. Displacement redox reactions

(b)

Interpretation Introduction

Interpretation:

Whether the given redox reaction is a combination, decomposition, or displacement reaction is to be classified and the molecular equation is to be written. Also, the oxidizing and reducing agent is to be identified.

$\text{CO}\left(g\right)+{\text{O}}_2\left(g\right)\to {\text{CO}}_2\left(g\right)$

Concept introduction:

There are three types of equations that are utilized to represent an ionic reaction:

1. Molecular equation

2. Total ionic equation

3. Net ionic equation

The molecular equation represents the reactants and products of the ionic reaction in undissociated form. In total ionic reaction, all the dissociated ions that are present in the reaction mixture are represented and in net ionic reaction, the useful ions that participate in the reaction are represented.

Spectator ions are the ions that are not a part of the actual chemical change but are present in the reaction mixture to balance the charge on both sides of the reaction. They are represented in the total ionic reaction. These are the dissolved ions present in the reaction mixture.

A redox reaction is a type of reaction that involves the change in oxidation number of a molecule, atom or ion changes due to the transfer of an electron from one species to another.

The redox reaction can be classified into three types depending upon the number of reactants and products as follows:

1. Combination redox reaction.

2. Decomposition redox reaction.

3. Displacement redox reactions

(c)

Interpretation Introduction

Interpretation:

Whether the given redox reaction is a combination, decomposition, or displacement reaction is to be classified and the molecular equation is to be written. Also, the oxidizing and reducing agent is to be identified.

${\text{N}}_2{\text{O}}_5\left(s\right)\to {\text{NO}}_2\left(g\right)+{\text{O}}_2\left(g\right)$

Concept introduction:

There are three types of equations that are utilized to represent an ionic reaction:

1. Molecular equation

2. Total ionic equation

3. Net ionic equation

The molecular equation represents the reactants and products of the ionic reaction in undissociated form. In total ionic reaction, all the dissociated ions that are present in the reaction mixture are represented and in net ionic reaction, the useful ions that participate in the reaction are represented.

Spectator ions are the ions that are not a part of the actual chemical change but are present in the reaction mixture to balance the charge on both sides of the reaction. They are represented in the total ionic reaction. These are the dissolved ions present in the reaction mixture.

A redox reaction is a type of reaction that involves the change in oxidation number of a molecule, atom or ion changes due to the transfer of an electron from one species to another.

The redox reaction can be classified into three types depending upon the number of reactants and products as follows:

1. Combination redox reaction.

2. Decomposition redox reaction.

3. Displacement redox reactions