Chemistry: The Science in Context (4th Edition)

Published by W.W. Norton & Co.
ISBN 10: 0393124177
ISBN 13: 978-0-39312-417-0

Chapter 1 - Matter and Energy: The Origin of the Universe - Problems - Page 36: 25

Answer

a.

Work Step by Step

Elements are composed of only one type of atom whereas compounds are composed of two or more kinds of atoms. a. Chlorine ($Cl_2$) is an element. b. $H_2O$, or water, is a compound. c. $HCl$ is a compound. d. $NaCl$, or salt, is a compound.
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