Chemistry: The Central Science (13th Edition)

Published by Prentice Hall
ISBN 10: 0321910419
ISBN 13: 978-0-32191-041-7

Chapter 2 - Atoms, Molecules, and Ions - Exercises - Page 77: 2.70c

Answer

Aluminum cation has a +3 charge. Chlorate anion has a -1 charge.

Work Step by Step

There is no overall charge on the compound. Thus the charges are balanced. Aluminum can loose 3 electrons from its outer most shell, therefore it has a +3 charge. There are three chlorate anions present each having a -1 charge, thus making overall charges balanced.
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