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: 2.79e


Perchloric acid: $HClO_{4}$ Cadmium: $Cd$ Cadmium (II) perchlorate: $Cd(ClO_{4})_{2}$

Work Step by Step

Perchlorate ion ($ClO_{4}^{-}$) has a -1 charge. To form an acid, hydrogen ions are needed. Hydrogen ion have a +1 charge ($H^{+}$). Since the charges are balanced, Perchloric acid is formed which has a formula $HClO_{4}$ In Cadmium (II) perchlorate, Cadmium has a +2 charge. Perchlorate ion ($ClO_{4}^{-}$) has a -1 charge. In order to balance charges, two perchlorate ions are required. Thus, the chemical formula of Cadmium (II) perchlorate is $Cd(ClO_{4})_{2}$
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