CHEM107 Exam3_Ans - An aggie does not lie cheat or steal or...

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“An aggie does not lie, cheat or steal, or tolerate those who do” Spring 2011 CHEM 107 Section # 502 Exam 3 Monday April 4, 2011 Total points: 100 Time: 50 minutes Instructor: Masud Monwar, Ph.D. Name: …………………………………………………………………………… Exam Instructions: This EXAM contains 2 parts: a) multiple choices, for which you must use the scantron and b) free response questions, which you must answer in this booklet. A periodic table is provided with this exam. All constants, conversion factors and equations required for numerical calculations are provided at the back of this exam. For multiple choice questions, select the most appropriate answer. There might be a number of correct answers, but only the most appropriate answer will get the credit. Show all your work for numerical calculations to get the full credit. Do not forget to give unit (if there is any) with your final answer. Grading Policy: For numerical calculations, 50% points will be taken off for wrong work and correct answer or for correct work and wrong answer. You will lose 1 point if you do not give the unit (if there is any) to your final answer. Partial credits might be given for certain answers. Partial credits (if there is any) will be explained in the answer key posted online after the exam. Re-grading policy: If you are not satisfied with the grading of your exam, you are always welcome to request for re-grading. But DO NOT WRITE/ CHANGE ANYTHING ON YOUR EXAM . Write down your name, email address and the number(s) of question(s) which you want to be re-graded in a separate piece of paper and attach it to the exam and give it to your instructor in the class or drop it in his office (104A HELD) during office hours. Please turn over
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Question # Total points/Q Student’s Score 1 - 20 50 21 - 24 50 Total Score 100 Exam Begins Here Answer Q. 1 – 20 in the scantron (select the most appropriate answer): [2.5 pts × 20 = 50 pts] 1. The enthalpy change ( H) for a reaction is positive. This means that the – (b) and (c)
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