Chemistry (12th Edition)

Published by Prentice Hall
ISBN 10: 0132525763
ISBN 13: 978-0-13252-576-3

Chapter 9 - Chemical Names and Formulas - 9.2 Naming and Writing Formulas for Ionic Compounds - Sample Problem 9.3 - Page 275: 13


a) Calcium Oxide b) Copper Selenide(II) c) Iron Sulfide d) Iron Aluminide(III)

Work Step by Step

A) Ca stands for Calcium, and O for Oxygen. You place the cations first, Calcium, which has a charge of +2. You normally add an "ide" to the second or last element. For Oxygen, it now becomes oxide, because it has a charge of -2. B) Use the criss cross method. What was, for example, CoI^2, becomes Cobalt(II) Iodine. C) Look above for explanation. D) Look above for explanation.
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