Exam 2: Measurement and Problem Solving
Exam 1: The Chemical World54 Questions
Exam 2: Measurement and Problem Solving121 Questions
Exam 3: Matter and Energy110 Questions
Exam 4: Atoms and Elements106 Questions
Exam 5: Molecules and Compounds101 Questions
Exam 6: Chemical Composition111 Questions
Exam 7: Chemical Reactions102 Questions
Exam 8: Quantities in Chemical Reactions108 Questions
Exam 9: Electrons in Atoms and the Periodic Table101 Questions
Exam 10: Chemical Bonding100 Questions
Exam 11: Gases112 Questions
Exam 12: Liquids,solids,and Intermolecular Forces105 Questions
Exam 13: Solutions110 Questions
Exam 14: Acids and Bases106 Questions
Exam 15: Chemical Equilibrium106 Questions
Exam 16: Oxidation and Reduction102 Questions
Exam 17: Radioactivity and Nuclear Chemistry106 Questions
Exam 18: Organic Chemistry106 Questions
Exam 19: Biochemistry95 Questions
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How many significant figures should be reported in the answer to the following calculation?
(8.50)× (29.0)× (1.0947)=
(Multiple Choice)
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A lead ball has a mass of 55.0 grams and a density of 11.4 g/cm3.What is the volume of the ball?
(Multiple Choice)
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Conversion factors are constructed from any two quantities known to be equivalent.
(True/False)
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The correct scientific notation for the number 0.00050210 is:
(Multiple Choice)
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A 12-oz can of soda pop costs fifty cents.A 2.00 L bottle of the same variety of soda pop costs $1.29.How many times more expensive it is to buy the 12-oz can of pop compared to buying it in a 2.00 L bottle? (1.00 L = 1.057 quart and 1 quart contains 32 oz)
(Multiple Choice)
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If you know the density of a liquid and its volume,the mass of the liquid may be calculated using the equation: m = V/d.
(True/False)
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Numbers are usually written so that the uncertainty is in the last reported digit.
(True/False)
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One mile measures 5,280 feet long,so one square mile is equivalent to 5,280 square feet.
(True/False)
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If you are given the mass and density of an object,you can calculate the volume by using the equation:
V = m/d.
(True/False)
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There are exactly 2.54 centimeters in 1 inch.When using this conversion factor,how many significant figures are you limited to?
(Multiple Choice)
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What is the density (g/mL)of an object that has a mass of 14.01 grams and,when placed into a graduated cylinder,causes the water level to rise from 25.2 mL to 33.6 mL?
(Multiple Choice)
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