midterm

midterm - Page 1 of 10 Chemistry 121 The University of...

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Page 1 of 10 Chemistry 121 The University of British Columbia Midterm Examination October 25, 2007 Time: 60 minutes Family/Last Name (printed):______________________ First Name: ___________________________________ Signature:_____________________________________ Student Number:_______________________________ Please check ! your lecture section: ___101 (MWF 1:00) Dr. Gates ___102 (MWF 2:00) Dr. Krems ___103 (MWF 3:00) Dr. Dönnecke ___110 (MWF 10:00) Dr. Herring ___111 (MWF 11:00) Dr. Wolf ___122 (T,Th 2:00) Dr. Mehrkhodavandi ___133 (T,Th 3:30) Dr. Liu ___188 (T,Th 8:00) Dr. Kennepohl ___199 (T,Th 9:30) Dr. Bertram INSTRUCTIONS 1. Write all answers on this examination paper, and show full details of your solutions for Part 2. 2. Read each question carefully. 3. Check that this examination consists of 10 PAGES PRINTED ON BOTH SIDES , as well as a periodic table which may be detached for ease of use. 4. The only calculator allowed is the Sharp EL-510R. All other calculators will be confiscated. Cell phones or other electronic communication devices are not permitted. 5. Unassembled molecular model kits may be used. Put the first letter of your family/last name in this box.
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Page 2 of 10 Marks Part Question Possible Marks Marks 1 14 2 1 5 2 6 3 6 4 6 5 6 6 5 7 6 8 6 Total 60
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Page 3 of 10 Part 1. Multiple Choice (14 marks total) For each numbered statement below, circle the letter that corresponds to the best answer. There is only one correct answer per question. Each question answered correctly is worth 2 marks. 1. Which of the following molecules has both an electron group geometry and a molecular geometry described as trigonal planar? (a) PF 3 (b) SO 2 (c) SiH 4 (d) BF 3 (e) CHF 3 2. Which of the following species is best represented by only three resonance structures (formal charges must be minimized)?
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midterm - Page 1 of 10 Chemistry 121 The University of...

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