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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Suppose a boat engine leaks 938 milliliters of oil into a lake.The mass of this spilled oil is 823 grams.The oil will not mix with the lake water.Which statement is true?
Free
(Multiple Choice)
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Correct Answer:
B
The correct multiplier for the prefix femto is:
Free
(Multiple Choice)
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Correct Answer:
A
A solution map diagrams the steps required to get from the starting point to the end point of a calculation problem.
Free
(True/False)
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Correct Answer:
True
How many significant digits should be reported in the answer to the following calculation?
(4.921)+ (16.2)=
(Multiple Choice)
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Trailing zeros at the end of a number,but before an implied decimal point,are ambiguous.
(True/False)
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Determine the answer for the equation below with correct number of significant figures:
1.2 × 1.79 = ________
(Multiple Choice)
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Suppose a perfectly symmetric metal rod of the element lead has a density of 11.4 g/cm3.If this rod is cut in half,the density of each piece is now 5.7 g/cm3.
(True/False)
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The decimal number 0.0210 expressed in scientific notation is 2.10 × 10-2.
(True/False)
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A popular science demonstration is to take several liquids that will not mix together and "stack" these liquids in a tall glass cylinder.Suppose the following three liquids were placed in the same tall,narrow glass cylinder:
These liquids would stack in which order?

(Multiple Choice)
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The Olympic Games shot put field event uses a 16 pound (lb)shot.Identify the correct solution map to convert from pounds to kilograms using prefix multipliers and the given conversions of 16 0z = 1 lb and
453.6 g = 16 oz.
(Multiple Choice)
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How many significant digits should be reported in the answer to the following calculation?
(4.3 - 3.7)× 12.3=
(Multiple Choice)
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Which of the following would NOT be considered a correct conversion factor?
(Multiple Choice)
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