practice Exam1 - The following is an exam from a previous...

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The following is an exam from a previous semester of 4:005. The questions in gray relate to material that probably will not be covered by the end of lecture on Wednesday and therefore will not be covered on the upcoming exam. Questions that do not pertain to the First Exam for Spring 2009 and you are not expected to know (for now): # 3, 4, 13, 17, 18, 20, 24 The format will be the same: 25 multiple choice questions, the majority of which will be conceptual questions rather than mathematical.
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Page 1 of 7 CHEM 4:005 – TECHNOLOGY AND SOCIETY EXAM #1 (25 QUESTIONS, 1 ½ HOURS) SEPTEMBER 24, 2007 FORM A 1. What is the shape of the nitrate ion, NO 3 -1 ? a) T-shaped (angles = 90º) b) bent (angles = 104.5º) c) tetrahedral (angles = 109.5º) d) trigonal planar (angles = 120º) e) linear (angles = 180º) 2. Which of the following statements relating to allotropes is true? I. Allotropes can differ in molecular structure II. Allotropes can differ in crystal structure III. Allotropes can differ in physical properties a) I only is true b) II only is true c) I and II are true d) II and III are true e) I, II, and III are true 3. Which of the following is not a potential effect of global warming? a) spread of human diseases b) unpredictable weather patterns c) mass wildlife extinction d) rising sea levels e) all of the above are potential effects 4. Methanol (CH 3 OH), also known as wood alcohol, is sometimes a contaminant in moonshine, and can cause blindness and even death in quantities as small as 4 ounces. What is the molecular mass of methanol? a) 14 g/mol b) 18 g/mol c) 32 g/mol d) 34 g/mol e) 48 g/mol
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Page 2 of 7 5. The Air Quality Standards set by the U.S. Environmental Protection Agency takes which of the following into consideration? a) exposure time b) chemical identity c) particle size d) concentration e) all of the above 6. Which of these gases is the second largest component of dry air?
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This note was uploaded on 09/20/2011 for the course 004 005 taught by Professor Staff during the Spring '09 term at University of Iowa.

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practice Exam1 - The following is an exam from a previous...

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