Sample1 - Name Sample Exam Questions#1(Chapters 1-4...

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Name__________________________________________ Sample Exam Questions #1 (Chapters 1-4) Chemistry 112 Multiple Choice 1. Which of the following statements best describes what happens when chocolate melts? a) This is a physical change, and the molecules move farther apart. b) This is a chemical change, and the molecules move farther apart. c) This is a physical change, and the molecules move closer together. d) This is a chemical change, and the molecules move closer together. 2. Which of the following is not part of Dalton’s atomic theory? a) All matter is composed of indivisible atoms. b) Atoms of the same element can be different. c) Compounds form when atoms combine in whole number ratios. d) A chemical reaction involves rearrangement of atoms. 3. Which of the following pairs of compounds illustrates the law of multiple proportions? a) Fe, FeO 3 b) Cl, Cl 2 c) H 2 SO 4 , NaOH d) H 2 O, H 2 O 2 4. Which of the following elements would you expect to behave most like magnesium? a) sodium b) calcium c) aluminum d) scandium 5. Which of the following has the longest wavelength? a) X rays b) microwaves c) green light d) UV light 6. Which of the following represents the correct formula of the compound formed by fluorine and aluminum? a) Al 3 F 7 b) Al 5 F c) AlF 3 Al 7 F 3 7. Which of the following is an ionic compound? a) N 2 O b) CO c) HCl d) Na 2 O 8. What is the molar mass of acetaminophen, shown here? a) 151 g/mol
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This note was uploaded on 03/31/2012 for the course CHEM 360 taught by Professor Millard during the Spring '12 term at Colby.

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Sample1 - Name Sample Exam Questions#1(Chapters 1-4...

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