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Chemistry In Focus

7th Edition
Tro + 1 other
Publisher: Cengage Learning,
ISBN: 9781337399692

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BuyFindarrow_forward

Chemistry In Focus

7th Edition
Tro + 1 other
Publisher: Cengage Learning,
ISBN: 9781337399692
Chapter 14, Problem 23E
Textbook Problem
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What are the chemical similarities among the following processes?

a. combustion of gasoline in an automobile engine

b. metabolism of foods in our bodies

c. rusting of iron

Interpretation Introduction

Interpretation:

The chemical similarities of each process are to be explained.

Concept Introduction:

The chemical reaction in which oxidation process and reduction process take place simultaneously, is called a redox reaction.

An automobile battery is a type of battery that converts chemical energy into electrical energy.

The automobile battery is a lead-acid storage battery.

Oxidation is the addition of an electronegative element or the removal of an electropositive element in a chemical reaction.

Reduction is the addition of an electropositive element or the removal of an electronegative element in a chemical reaction.

Explanation of Solution

a) Combustion of gasoline in an automobile engine

The equation for the combustion of a hydrocarbon in the presence of oxygen is as follows:

2CH4+O2CO2+H2O

An oxidizing agent gains electrons easily and a reducing agent loses electrons easily in a chemical reaction.

2C4H4+1+O20C+4O22+H2+1O2

In this chemical reaction, loss of electrons occurs. Therefore, CH4 is oxidized.

In this chemical reaction, gain of electrons occurs. Therefore, O2 is reduced.

Therefore, the combustion of gasoline in the automobile is a redox reaction.

b) Metabolism of foods in our bodies

The chemical equation for the oxidation of the glucose is as follows:

C6H12O6+6O26CO2+6H2O

An oxidizing agent gains electrons easily and a reducing agent loses electrons easily in a chemical reaction

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Chapter 14 Solutions

Chemistry In Focus
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