Chemistry 10th Edition

Published by Brooks/Cole Publishing Co.
ISBN 10: 1133610668
ISBN 13: 978-1-13361-066-3

Chapter 1 - The Foundations of Chemistry - Exercises - Matter and Energy - Page 36: 3


a. Matter - It is anything that occupies or takes up space and has a mass. b. Kinetic Energy is the energy that an object has due to its movement. c. Mass is the property which reflects the quantity of matter in a given sample. An example of mass is a kilogram of something. d. Exothermic Reaction is a chemical energy that is usually converted into heat energy.

Work Step by Step

a. Matter is that which is perceived as a whole, but which is nevertheless susceptible to change, which is why it occupies a weight and time in space. Our senses of sight and touch usually tell us that an object occupies space. b. Kinetic energy represents the capacity for doing its work directly. It is easily transferred between objects. As a result, we transfer energy to the object, and it will move with a new constant speed. We apply force when we want to accelerate an object. c. Mass is a measure of the quantity of matter in a sample of any material. The more mass an object has, the more force is needed to put it in motion. All bodies consist of matter. d. Some exothermic processes involve kinds of energy changes where some liberate light energy without the use of heat, and others produce electrical energy without using heat or light.
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