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: 2.62d



Work Step by Step

Ca$^{2+}$ has a 2+ charge, and ClO$_{3}^{-}$ has a 1- charge. Therefore you need two ClO$_{3}^{-}$ to balance out one Ca$^{2+}$ to create a neutral compound, and the chemical formula must be Ca(ClO$_{3}$)$_{2}$.
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