Chemistry (7th Edition)

Published by Pearson
ISBN 10: 0321943171
ISBN 13: 978-0-32194-317-0

Chapter 2 - Atoms, Molecules, and Ions - Worked Example - Page 64: 22


(1) $(c)CaCl_2$ (2) $(a) LiBr$ and $(b) NaNO_2$

Work Step by Step

Figure (1) represents a compound with 1 cation and 2 anions. The only formula with this configuration is $CaCl_2$. Cation: $Ca^{2+}$; Anion: $Cl^-$. Figure (2) represents a compound with equal amounts of anions and cations. This case only appears in $LiBr$ and $NaNO_2$, where both have only 1 of each ion in their formulas.
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