Chemistry 1A - Fall 2002 - Midterm 2

Chemistry 1A - Fall 2002 - Midterm 2 - Chemistry 1A Fall...

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Chemistry 1A, Fall 2002 Midterm Exam II, Version A October 15, 2002 (90 min, closed book) Name: TA: SID: Section: Please read this first: Write your name and that of your TA on all 10 pages; On the Scantron TM , bubble in Form A. T est - taking Strategy This test consists of two parts: multiple choice ( answers to be circled and entered on the Scantron TM sheet ) and short answer. In order to maximize your score on the exam: Do the questions you know how to do first. Then, go back and spend more time on the questions you find more challenging. Budget your time carefully -- don't spend too much time on one problem. Show all work for which you want credit and don't forget to include units. Page Score MC 9 10 11 Total
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Name_______________________ TA _________________________ Potentially Useful Information PV = nRT MM = mRT / (PV) T(K) = T(C) + 273.15 R = 0.0821 L·atm / (mol·K) A = elC P a = X a *P tot P = F/A
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Name_______________________ TA _________________________ Part I Multiple Choice (4 pts each, 108 pts total) Bubble in the correct answer on your Scantron TM form AND circle your answer on the exam. There is only one correct answer for each question, so you should circle and fill in one and only one answer for each question. There is no penalty for an incorrect response. 1.) Which of the following is the most likely valence electron configuration of an oxygen atom after it has b een ionized to O + ? 2s 2p A) B) C) D) E) 2.) Which of the following has the highest ionization energy? 3.) Which of the following has the largest radius? Use the pictures below of electrons confined to boxes to answer the following two questions. Fill in the letter of the box which answers each question. A B C D E
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