9th Edition

ISBN: 9781133611097

Author: Steven S. Zumdahl

Publisher: Cengage Learning

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The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for a…

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained …

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Textbook Question

Chapter 1, Problem 86E

During a very cold winter, the temperature may remain below freezing for extended periods. However, fallen snow can still disappear, even though it cannot melt. This is possible because a solid can vaporize directly, without passing through the liquid state. Is this process (sublimation) a physical or a chemical change?

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Chapter 1 Solutions

Chemistry

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Solution Summary: The author explains that the sublimation process is a chemical or physical change because the phase of the substance only changed.

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Chapter 1 Solutions