World of Chemistry, 3rd edition
World of Chemistry, 3rd edition
3rd Edition
ISBN: 9781133109655
Author: Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Publisher: Brooks / Cole / Cengage Learning
bartleby

Concept explainers

bartleby

Videos

Question
Book Icon
Chapter 2.2, Problem 4RQ

(a)

Interpretation Introduction

Interpretation: Whether the given statement is a chemical change or physical change needs to be explained.

Concept Introduction: The nature of any substance is explained by their chemical properties and physical properties. A physical property describes the physical changes of a substance. Physical change is a temporary change; it is a reversible change. For example, color, mass, volume, etc. A chemical property describes how a substance reacts with other substances. In a chemical change, a new substance is formed and absorption of energy or loss of energy occurs; it is an irreversible change. For example, rusting, dissolving, etc.

(a)

Expert Solution
Check Mark

Answer to Problem 4RQ

The given statement,food coloring is added to water, and the water appears red, will be categorized in a physical change.

Explanation of Solution

In any changes, if the composition remains the same then it is considered as an example of physical change. When any type of food color is added to water, it forms a mixture and mixture is a physical combination of two or more substances. Also, in this process, no new substance is formed. So, given statement is considered as a physical change.

In a chemical change, important point is the formation of a new substance; in the given example, no new substance is formed. So, given statement is not categorized in a chemical change.

(b)

Interpretation Introduction

Interpretation: Whether the given statement is a chemical change or physical change needs to be explained.

Concept Introduction: The nature of any substance is explained by their chemical properties and physical properties. A physical property describes the physical changes of a substance. Physical change is a temporary change; it is a reversible change. For example, color, mass, volume, etc. A chemical property describes how a substance reacts with other substances. In a chemical change, a new substance is formed and absorption of energy or loss of energy occurs; it is an irreversible change. For example, rusting, dissolving, etc.

(b)

Expert Solution
Check Mark

Answer to Problem 4RQ

The given statement,an egg is placed in boiling water until the egg becomes hard-boiled, will be categorized in a chemical change.

Explanation of Solution

In a chemical change, important point is the formation of a new substance. An egg consists of a large amount of protein & amino acids. After boiling an egg, the heat will change its viscosity and also, it will chemically alter the egg's shape & chemical composition. So, given statement is a chemical change.

The given example is irreversible process. So, given statement is not categorized in a physical change.

(c)

Interpretation Introduction

Interpretation: Whether the given statement is a chemical change or physical change needs to be explained.

Concept Introduction: The nature of any substance is explained by their chemical properties and physical properties. A physical property describes the physical changes of a substance. Physical change is a temporary change; it is a reversible change. For example, color, mass, volume, etc. A chemical property describes how a substance reacts with other substances. In a chemical change, a new substance is formed and absorption of energy or loss of energy occurs; it is an irreversible change. For example, rusting, dissolving, etc.

(c)

Expert Solution
Check Mark

Answer to Problem 4RQ

The given statement, gasoline undergoes combustion in an automobile, will be categorized in a chemical change.

Explanation of Solution

In a chemical change, important point is the formation of a new substance. Combustion, start with carbon & oxygen and end up with carbon dioxide. The given statement is a chemical change as combustion gives rise to new products.

The given example is irreversible process. So, given statement is not categorized in a physical change.

(d)

Interpretation Introduction

Interpretation: Whether the given statement is a chemical change or physical change needs to be explained.

Concept Introduction: The nature of any substance is explained by their chemical properties and physical properties. A physical property describes the physical changes of a substance. Physical change is a temporary change; it is a reversible change. For example, color, mass, volume, etc. A chemical property describes how a substance reacts with other substances. In a chemical change, a new substance is formed and absorption of energy or loss of energy occurs; it is an irreversible change. For example, rusting, dissolving, etc.

(d)

Expert Solution
Check Mark

Answer to Problem 4RQ

The given statement, sugar is dissolved in a glass of iced tea, will be categorized in a physical change.

Explanation of Solution

In any changes, if the composition remains the same then it is considered as an example of physical change. When sugar dissolves in a glass of iced tea, no new product will be formed. So, given statement is considered as a physical change.

In a chemical change, important point is the formation of a new substance; in the given example, no new substance is formed. So, given statement is not categorized in a chemical change.

(e)

Interpretation Introduction

Interpretation: Whether the given statement is a chemical change or physical change needs to be explained.

Concept Introduction: The nature of any substance is explained by their chemical properties and physical properties. A physical property describes the physical changes of a substance. Physical change is a temporary change; it is a reversible change. For example, color, mass, volume, etc. A chemical property describes how a substance reacts with other substances. In a chemical change, a new substance is formed and absorption of energy or loss of energy occurs; it is an irreversible change. For example, rusting, dissolving, etc.

(e)

Expert Solution
Check Mark

Answer to Problem 4RQ

The given statement, you inhale oxygen and exhale carbon dioxide, will be categorized in a chemical change.

Explanation of Solution

In a chemical change, important point is the formation of a new substance.

In this process, you inhale oxygen & exhale carbon dioxide, energy is produced in the mitochondria of cells and this process is irreversible. So, given statement is categorized in a physical change.

The given example is irreversible process. So, given statement is not categorized in a physical change.

Knowledge Booster
Background pattern image
Chemistry
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Text book image
Chemistry
Chemistry
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Cengage Learning
Text book image
Chemistry
Chemistry
ISBN:9781259911156
Author:Raymond Chang Dr., Jason Overby Professor
Publisher:McGraw-Hill Education
Text book image
Principles of Instrumental Analysis
Chemistry
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Cengage Learning
Text book image
Organic Chemistry
Chemistry
ISBN:9780078021558
Author:Janice Gorzynski Smith Dr.
Publisher:McGraw-Hill Education
Text book image
Chemistry: Principles and Reactions
Chemistry
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:Cengage Learning
Text book image
Elementary Principles of Chemical Processes, Bind...
Chemistry
ISBN:9781118431221
Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:WILEY
Types of Matter: Elements, Compounds and Mixtures; Author: Professor Dave Explains;https://www.youtube.com/watch?v=dggHWvFJ8Xs;License: Standard YouTube License, CC-BY