Chemistry 9th Edition

Published by Cengage Learning
ISBN 10: 1133611095
ISBN 13: 978-1-13361-109-7

Chapter 8 - Bonding: General Concepts - Questions - Page 404: 15


a. $HCl$ b. $NaCl$ c. $H_2$

Work Step by Step

a. The diagram shows an unsymmetrical distribution of the electron cloud corresponding to a polar bond. $HCl$ contains a polar bond because the Cl atom is slightly more electronegative than the H atom. b. The diagram shows a cation bonded to an anion corresponding to an ionic bond. $NaCl$ contains an ionic bond because the electronegativity of Cl is so much greater than the electronegativity of Na. c. The diagram shows a perfectly symmetric distribution of the electron cloud corresponding to a nonpolar bond. $H_2$ contains a nonpolar bond because both hydrogen atoms have equal electronegativities and attract the electrons with equal strength.
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