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Exam 2: Measurement and Problem Solving

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Exam 1: The Chemical World54 Questionsadd course
Exam 2: Measurement and Problem Solving121 Questionsadd course
Exam 3: Matter and Energy110 Questionsadd course
Exam 4: Atoms and Elements106 Questionsadd course
Exam 5: Molecules and Compounds101 Questionsadd course
Exam 6: Chemical Composition111 Questionsadd course
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Exam 8: Quantities in Chemical Reactions108 Questionsadd course
Exam 9: Electrons in Atoms and the Periodic Table101 Questionsadd course
Exam 10: Chemical Bonding100 Questionsadd course
Exam 11: Gases112 Questionsadd course
Exam 12: Liquids,solids,and Intermolecular Forces105 Questionsadd course
Exam 13: Solutions110 Questionsadd course
Exam 14: Acids and Bases106 Questionsadd course
Exam 15: Chemical Equilibrium106 Questionsadd course
Exam 16: Oxidation and Reduction102 Questionsadd course
Exam 17: Radioactivity and Nuclear Chemistry106 Questionsadd course
Exam 18: Organic Chemistry106 Questionsadd course
Exam 19: Biochemistry95 Questionsadd course
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The correct number of significant figures in the number 4.0 × 10-2 is:

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