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Which change is a physical change?a) wood burningb) iron

Chemistry: A Molecular Approach | 3rd Edition | ISBN: 9780321809247 | Authors: Nivaldo J. Tro ISBN: 9780321809247 1

Solution for problem 3SAQ Chapter 1

Chemistry: A Molecular Approach | 3rd Edition

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Chemistry: A Molecular Approach | 3rd Edition | ISBN: 9780321809247 | Authors: Nivaldo J. Tro

Chemistry: A Molecular Approach | 3rd Edition

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Problem 3SAQ

Which change is a physical change?

a)        wood burning

b)        iron rusting

c)        dynamite exploding

d)        gasoline evaporating

Step-by-Step Solution:

Step 1 of 5

A chemical change occurs when chemical properties of a substance change and form a new compound.

Example : Water dissociates into hydrogen and oxygen.

A physical change occurs when the physical properties of a substance change, but its composition remains the same.

Example :Water turns into ice.

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Step 2 of 5

Chapter 1, Problem 3SAQ is Solved
Step 3 of 5

Textbook: Chemistry: A Molecular Approach
Edition: 3
Author: Nivaldo J. Tro
ISBN: 9780321809247

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Which change is a physical change?a) wood burningb) iron