RelativeResourceManager(4) - (b) Ternary compounds contain...

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4 of 17 (b) Ternary compounds contain three elements (i.e. KNO 3 ). Two of the elements together form an anion. The suffixes -ite and -ate are used to denote the valence state of the anion. "ite " refers to the valence of some element combined with oxygen to form an anion when this element is not in its highest valence state. Example: NO 2 - nitrite -nitrogen is in a +3 valence but also has a +5 valence. "ate " refers to some element combined with oxygen to form an anion when the particular element is in its highest valence states. These are more common. Example: NO 3 - nitrate -nitrogen is in a +5 valence 3. Aqueous Solutions (aq) and Hydrated Ions In aqueous solutions, each ion is closely associated with a few water molecules; in fact, the formation of these hydrated ions is largely responsible for the behavior of ionic compounds in water. These aqueous, or hydrated, ions are usually indicated by the symbol (aq), placed after the formula. The number of water molecules closely associated with a given ion is not
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This note was uploaded on 06/21/2011 for the course NRES 201 taught by Professor Olson,k during the Spring '08 term at University of Illinois, Urbana Champaign.

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