Quiz_9(9-10)_2009

Quiz_9(9-10)_2009 - CHM-201-03 Quiz 9 AU09 1/2 Take Home...

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CHM-201-03 Quiz 9 AU09 1/2 CHM-201-03 Fall 2009 Take Home QUIZ 9 (Chapter 9&10) December 9, 2009 Dr. Lin Name: 1. Multiple choice. Choose the one alternative that best completes the statement or answers the question (1.5 points each): 1. The Lewis dot symbol for the S 2– ion is A) S •• •• : : B) S •• •• : : 2– C) S 2– D) S 2– E) S •• : 2. The Lewis dot symbol for the calcium ion is A) Ca : : 2+ B) Ca C) Ca •• •• : : 2+ D) Ca 2+ E) Ca 3. Which of the following solids would have the lowest melting point? A) KI B) KBr C) KCl D) KF 4. Calculate the energy change for the reaction K(g) + Br(g) K + (g) + Br (g) given the following ionization energy (IE) and electron affinity (EA) values IE EA K: 419 kJ/mol 48 kJ/mol Br: 1140 kJ/mol 324 kJ/mol A)–1,092 kJ/mol B)–95 kJ/mol C)95 kJ/mol D)1,092 kJ/mol E)1,187 kJ/mol 5. Which of the elements listed below has the greatest electronegativity? A)
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Quiz_9(9-10)_2009 - CHM-201-03 Quiz 9 AU09 1/2 Take Home...

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