Chemistry 2012 Student Edition (hard Cover) Grade 11
Chemistry 2012 Student Edition (hard Cover) Grade 11
12th Edition
ISBN: 9780132525763
Author: Prentice Hall
Publisher: Prentice Hall
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Chapter 2, Problem 84A
Interpretation Introduction

Interpretation: The reason for giving a false statement about no change in appearance during physical change needs to be explained.

Concept Introduction: When a substance changes its appearance or change in the state takes place and there is no change in its chemical composition, the change is said to be physical. On the other hand, when there is a change in the chemical composition of a substance or a new substance is formed after a chemical reaction, it is known as a chemical change.

Expert Solution & Answer
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Explanation of Solution

In a physical change, the composition of a substance remains the same but its appearance changes. Thus, the given statement is false. When water changes from liquid to vapor state, the composition of water that is 2 mol of hydrogen and 1 mol of oxygen remains the same. Only its state changes from liquid to gas. Similarly, on freezing, water gets converted into ice. This also changes its appearance.

Thus, even if there is no change in the composition, the appearance of a substance changes in a physical change.

Chapter 2 Solutions

Chemistry 2012 Student Edition (hard Cover) Grade 11

Ch. 2.1 - Prob. 11SPCh. 2.2 - Prob. 12LCCh. 2.2 - Prob. 13LCCh. 2.2 - Prob. 14LCCh. 2.2 - Prob. 15LCCh. 2.2 - Prob. 16LCCh. 2.2 - Prob. 17LCCh. 2.2 - Prob. 18LCCh. 2.2 - Prob. 19LCCh. 2.3 - Prob. 20SPCh. 2.3 - Prob. 21SPCh. 2.3 - Prob. 22LCCh. 2.3 - Prob. 23LCCh. 2.3 - Prob. 24LCCh. 2.3 - Prob. 25LCCh. 2.3 - Prob. 26LCCh. 2.3 - Prob. 27LCCh. 2.3 - Prob. 28LCCh. 2.3 - Prob. 29LCCh. 2.3 - Prob. 30LCCh. 2.3 - Prob. 31LCCh. 2.4 - Prob. 32LCCh. 2.4 - Prob. 33LCCh. 2.4 - Prob. 34LCCh. 2.4 - Prob. 35LCCh. 2.4 - Prob. 36LCCh. 2.4 - Prob. 37LCCh. 2.4 - Prob. 38LCCh. 2 - Prob. 39ACh. 2 - Prob. 40ACh. 2 - Prob. 41ACh. 2 - Prob. 42ACh. 2 - Prob. 43ACh. 2 - Prob. 44ACh. 2 - Prob. 45ACh. 2 - Prob. 46ACh. 2 - Prob. 47ACh. 2 - Prob. 48ACh. 2 - Prob. 49ACh. 2 - Prob. 50ACh. 2 - Prob. 51ACh. 2 - Prob. 52ACh. 2 - Prob. 53ACh. 2 - Prob. 54ACh. 2 - Prob. 55ACh. 2 - Prob. 56ACh. 2 - Prob. 57ACh. 2 - Prob. 58ACh. 2 - Prob. 59ACh. 2 - Prob. 60ACh. 2 - Prob. 61ACh. 2 - Prob. 62ACh. 2 - Prob. 63ACh. 2 - Prob. 64ACh. 2 - Prob. 65ACh. 2 - Prob. 66ACh. 2 - Prob. 67ACh. 2 - Prob. 68ACh. 2 - Prob. 69ACh. 2 - Prob. 70ACh. 2 - Prob. 71ACh. 2 - Prob. 72ACh. 2 - Prob. 73ACh. 2 - Prob. 74ACh. 2 - Prob. 75ACh. 2 - Prob. 76ACh. 2 - Prob. 77ACh. 2 - Prob. 78ACh. 2 - Prob. 79ACh. 2 - Prob. 80ACh. 2 - Prob. 81ACh. 2 - Prob. 82ACh. 2 - Prob. 83ACh. 2 - Prob. 84ACh. 2 - Prob. 85ACh. 2 - Prob. 86ACh. 2 - Prob. 87ACh. 2 - Prob. 88ACh. 2 - Prob. 89ACh. 2 - Prob. 90ACh. 2 - Prob. 93ACh. 2 - Prob. 94ACh. 2 - Prob. 95ACh. 2 - Prob. 1STPCh. 2 - Prob. 2STPCh. 2 - Prob. 3STPCh. 2 - Prob. 4STPCh. 2 - Prob. 5STPCh. 2 - Prob. 6STPCh. 2 - Prob. 7STPCh. 2 - Prob. 8STPCh. 2 - Prob. 9STPCh. 2 - Prob. 10STPCh. 2 - Prob. 11STPCh. 2 - Prob. 12STPCh. 2 - Prob. 13STPCh. 2 - Prob. 14STP
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