World of Chemistry
World of Chemistry
7th Edition
ISBN: 9780618562763
Author: Steven S. Zumdahl
Publisher: Houghton Mifflin College Div
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Chapter 7, Problem 1STP
Interpretation Introduction

Interpretation :

The option that is not a right clue that a chemical reaction has taken place must be chosen from the given list.

Concept Introduction :

A chemical reaction represents the chemical change in which new substance are produced with new appearance and properties.

Expert Solution & Answer
Check Mark

Answer to Problem 1STP

Correct answer: Option D is correct.

Explanation of Solution

Reason for correct option: Option D is correct because a pure solid can be converted to pure liquid by heating which is melting process and not a chemical reaction.

Conclusion

Reasons for incorrect options: Option A is incorrect as formation of a solid from two clear solutions indicates chemical reaction.

Option B is incorrect as color change of red solution to blue solution indicates chemical reaction.

Option C is incorrect as addition of solid into water resulting bubbles indicates evolution of gas which indicates chemical reaction.

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