163Exam3KeyS10

163Exam3KeyS10 - SEAT NO Professor Theresa Windus Spring...

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1 SEAT NO.__________ Professor Theresa Windus Spring 2010 THIS EXAM CONSISTS OF 13 QUESTIONS ON 5 PAGES CHEM 163 HOUR EXAM III March 24, 2010 NAME______________________ RECIT. INSTR._______________ RECIT. SECT.________________ GRADING Teaching Assistants and Recitation Sections PAGES Page 2 Page 3 Page 4 Page 5 Page 6 TOTAL POINTS 32 pts 24 pts 24 pts 20 pts 2 extra credit pts 100 pts SCORE ________ ________ ________ ________ ________ ________ Name Chamila Liyanage Jenny Lee Philip Carlson T-Purnima Ruberu Caleb Carlin John Baluyut Sections 1, 10 2, 5 3 9, 4 6 7, 8 Time 8:00, 10:00 9:00, 12:10 10:00 9:00, 11:00 1:10 2:10, 3:10 Rules of the Exam: 1. Show all of your work on the exam pages. Numerical answers should be given in the correct number of significant figures and with units. Answers missing units or having incorrect units will be graded as incorrect. 2. The last three pages contain a periodic table, electronegativity scale, solubility table and other useful facts for your convenience as well as a blank page for use as scratch paper. Use the information from the attached periodic table and NOT from the ones on the wall. 3. Turn off all electronic devices (except your calculator) including your cell phone. 4. This is a closed-book, closed-notes exam. You must use a non-programmable scientific calculator. THE ANSWER KEY TO THIS EXAM WILL BE POSTED ON THE CHEM 163 WEBCT SITE.
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2 1. (8 pts) Circle all of the molecules that have a molecular dipole. PF 3 CH 2 Cl 2 BH 3 CO 2 2. (2 pts) True or False. The higher the dipole moment of molecules in a liquid, the higher the boiling point. 3. (2 pts) True or False . Energy is gained in breaking a chemical bond. The statement was not well stated, so all answers were counted as correct. 4. (8 pts) Liquid pentanol (C 5 H 11 OH) is combusted with oxygen. Determine the products and write a balanced equation for this reaction. Remember to give the phase of each species in the reaction 2 C 5 H 11 OH (l) + 15 O 2 (g) 10 CO 2 (g) + 12 H 2 O (g or l) 5. (12 pts) Identify the type of each of the following reactions as combination, decomposition, single-
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163Exam3KeyS10 - SEAT NO Professor Theresa Windus Spring...

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