210-FA09-E1-MC-QA

210-FA09-E1-MC-QA - Name: _ Class: _ Date: _ ID: J CHEM 210...

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Name: ______________________ Class: _________________ Date: _________ ID: J 1 CHEM 210 - Exam 1 - Fall 2009 Multiple Choice (3.5 points each) Identify the choice that best answers the question and write it in the blank. ____ 1. Which of the following elements does NOT typically exist as a diatomic molecule? A) Hydrogen B) Oxygen C) Fluorine D) Nitrogen E) Carbon ____ 2. Express the measured quantity 40040.0 properly in scientific notation. A) 4.004 x 10 -4 D) 4.0040 x 10 4 B) 4.004 x 10 4 E) 4.0040000 x 10 4 C) 4 x 10 4 F) 4.00400 x 10 4 ____ 3. The boiling point of liquid nitrogen is -195.80°C. What is this value in K? A) -77.35 B) 273.15 C) -273.15 D) -468.95 E) 77.35 ____ 4. How many electrons are in a titanium (IV) ion? A) 22 B) 24 C) 18 D) 26 E) 4 ____ 5. Express the answer to the following expression to the correct number of significant figures: 4.8000 × 10 16 60.3 + 91.14 = A) 3.2 x 10 14 C) 3.2 x 10 15 E) 3.17 x 10 15 B) 3.17 x 10 14 D) 3.170 x 10 14 ____ 6. In the modern periodic table the elements are arranged in the order of increasing
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210-FA09-E1-MC-QA - Name: _ Class: _ Date: _ ID: J CHEM 210...

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