Chemistry: The Molecular Nature of Matter and Change 7th Edition

Published by McGraw-Hill Education
ISBN 10: 007351117X
ISBN 13: 978-0-07351-117-7

Chapter 1 - Problems: 1.9

Answer

- a sled sliding down the hill - water falling over the dam

Work Step by Step

We chose answer choice a because the sled is still in motion due to the fact that it is sliding down the hill. Answer choice b is also logical because water falling over a dam represents the flow of water.
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