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121quiz3Tpractice

121quiz3Tpractice -

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Practice Quiz 3 (Tuesday) Dr. Heyns Chemistry 121 Week of Autumn Quarter 2006 October 16, 2006 Time: 20 min Points: 30 Name of student:__________________________________ Name of TA:______________________________________ 1. (3 pts) Which of the following are weak electrolytes? A) HCl B) HC 2 H 3 O 2 C) NH 3 D) KCl a) HCl, KCl b) HCl, HC 2 H 3 O 2 , NH 3 , KCl c) HC 2 H 3 O 2 , KCl d) HC 2 H 3 O 2 , NH 3 e) HCl, HC 2 H 3 O 2 , KCl 2. (5 pts) The spectator ions in the reaction between aqueous perchloric acid and aqueous barium hydroxide are __________. a) OH - and ClO 4 - b) H + , OH - , ClO 4 - , and Ba 2+ c) H + and OH - d) H + and Ba 2+ e) ClO 4 - and Ba 2+ 1
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3. (3 pts) Which one of the following compounds is insoluble in water? (Consult the table at the end of the quiz). a) Na 2 CO 3 b) K 2 SO 4 c) Fe(NO 3 ) 3 d) ZnS e) AgNO 3 4. (3 pts) Which combination of reactants will produce a precipitate? (Consult the table with predicted solubilities at the end of the quiz.) a) NH 4 OH (aq) and HCl (aq)
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This note was uploaded on 05/14/2009 for the course CHEM 121 taught by Professor Wyzlouzil during the Fall '07 term at Ohio State.

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121quiz3Tpractice -

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