Chemistry and Chemical Reactivity (9th Edition)

Published by Cengage Learning
ISBN 10: 1133949649
ISBN 13: 978-1-13394-964-0

Chapter 2 Atoms, Molecules, and Ions - Study Questions: 44

Answer

a) 1 $Mg^{2+}$ and 1 $CH_3CO_2^-$ b) 1 $Al^{3+}$ and 3 $OH^{-}$ c) 1 $Cu^{2+}$ and 1 $CO_3^{2-}$ d) 1 $Ti^{4+}$ and 2 $SO_4^{2-}$ e) 1 $K^{+}$ and 1 $H_2PO_4^-$ f) 1 $Ca^{2+}$ and 1 $HPO_4^{2-}$

Work Step by Step

a) $Mg(CH_3CO_2)_2$: 1 $Mg^{2+}$ and 1 $CH_3CO_2^-$ b) $Al(OH)_3$: 1 $Al^{3+}$ and 3 $OH^{-}$ c) $CuCO_3$: Cu has a charge of $2+$, so: 1 $Cu^{2+}$ and 1 $CO_3^{2-}$ d) $Ti(SO_4)_2$: $SO_4$ has a charge of $2-$, so: 1 $Ti^{4+}$ and 2 $SO_4^{2-}$ e) $KH_2PO_4$: 1 $K^{+}$ and 1 $H_2PO_4^-$ f) $CaHPO_4$: Ca is from group 2A so it has a charge of $2+$: 1 $Ca^{2+}$ and 1 $HPO_4^{2-}$
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