Title: Exam 1-Fall 2016
Course: DOL Grant Introduction to Chemistry

Q: 12 is what percent of 36?
- 3%
- 30%
- 33%
- 330%
- 12%
A: 33%

Q: Write 540 000 in scientific notation.
- 0.54 × 10<sup>6</sup>
- 54 × 10<sup>8</sup>
- 5.4 × 10<sup>-5</sup>
- 5.4 × 10<sup>5</sup>
- 5.4
A: 5.4 × 10<sup>5</sup>

Q: For the equation -10 - (-4) = ________.
- 6
- -6
- 14
- -14
- 4
A: -6

Q: In the number 12.345, the 1 is in the ________ place.
- tens
- ones
- tenths
- hundredths
- thousandths
A: tens

Q: In the number 12.345, the 3 is in the ________ place.
- tens
- ones
- tenths
- hundredths
- thousandths
A: tenths

Q: The measurement 0.000 004 3 m, expressed correctly using scientific notation, is ________.
- 4.3 × 10<sup>-7</sup> m
- 4.3 × 10<sup>-6</sup> m
- 4.3 × 10<sup>6</sup> m
- 0.43 × 10<sup>-5</sup> m
- 4.3 m
A: 4.3 × 10<sup>-6</sup> m

Q: The product of (-4) × (-5) is ________.
- -20
- +20
- -1
- +1
- 0
A: +20

Q: In this list, which substance can be classified as a chemical?
- salt
- sleep
- cold
- heat
- temperature
A: salt

Q: There is more traffic between 8 and 9 in the morning because most people start work at 9. This would be a(n) ________.
- observation
- hypothesis
- experiment
- theory
- all of these
A: hypothesis

Q: You notice that there is more traffic between 8 and 9 in the morning. This would be a(n) ________.
- observation
- hypothesis
- experiment
- theory
- All of these
A: observation

Q: 1.00 pint of milk has a volume of how many milliliters?
- 473 mL
- 530. mL
- 1000 mL
- 1890 mL
- 106 mL
A: 473 mL

Q: 5.21 cm is the same length as ________.
- 0.0521 m
- 52.1 dm
- 5.21 mm
- 0.00521 km
- 5210 m
A: 0.0521 m

Q: A 50.0 mL urine sample has a mass of 50.7 g. The specific gravity of the urine is ________.
- 1.014 g/mL
- 0.986 g/L
- 1.01
- 0.986
- 50.7
A: 1.01

Q: A calculator answer of 423.6059 must be rounded off to three significant figures. What answer is reported?
- 423
- 424
- 1.7420
- 423.6
- 423.7
A: 424

Q: A conversion factor set up correctly to convert 15 inches to centimeters is ________.
- 100 cm/1 m
- 1 inch/2.54 cm
- 1 cm/10 mm
- 2.54 cm/1 inch
- 10 cm/1 inch
A: 2.54 cm/1 inch

Q: A doctor's order is 0.125 g of ampicillin. The liquid suspension on hand contains 250 mg/5.0 mL. How many milliliters of the suspension are required?
- 0.0025 mL
- 3.0 mL
- 2.5 mL
- 6.3 mL
- 0.0063 mL
A: 2.5 mL

Q: A liquid has a volume of 34.6 mL and a mass of 46.0 g. What is the density of the liquid?
- 1.00 g/mL
- 1.33 g/mL
- 0.752 g/mL
- 1330 g/mL
- 0.663 g/mL
A: 1.33 g/mL

Q: A value of 25 °C is a measurement of ________.
- length
- volume
- temperature
- mass
- density
A: temperature

Q: A value of 345 mm is a measure of ________.
- density
- mass
- temperature
- volume
- length
A: length

Q: A nugget of gold with a mass of 521 g is added to 50.0 mL of water. The water level rises to a volume of 77.0 mL. What is the density of the gold?
- 10.4 g/mL
- 6.77 g/mL
- 1.00 g/mL
- 0.0518 g/mL
- 19.3 g/mL
A: 19.3 g/mL

Q: According to the United States Food and Drug Administration, the recommended daily requirement of protein is 44 g. This is ________ of protein.
- 1248.5 oz
- 320 000 oz
- 1.6 oz
- 0.0605 oz
- 150 000 oz
A: 1.6 oz

Q: How many significant figures are in the number 0.00208?
- six
- two
- three
- four
- five
A: three

Q: 9.31 g is the same mass as ________.
- 931 <img align="middle" height="17" width="9" src="ppg/pearson/tm/ichem12t/u956.gif"/>g
- 931 kg
- 93.1 cg
- 9310 mg
- 0.0931 dg
A: 9310 mg

Q: Diamond has a density of 3.52 g/mL. What is the volume in cubic centimeters of a diamond with a mass of 15.1 g?
- 4.3 cm<sup>3</sup>
- 4.29 cm<sup>3</sup>
- 0.233 cm<sup>3</sup>
- 53 cm<sup>3</sup>
- 53.2 cm<sup>3</sup>
A: 4.29 cm<sup>3</sup>

Q: A dose of aspirin of 5.0 mg per kilogram of body weight has been prescribed to reduce the fever of an infant weighing 8.5 pounds. The number of milligrams of aspirin that should be administered is ________.
- 19 mg
- 53 mg
- 1.6 mg
- 5.0 mg
- 0.59 mg
A: 19 mg

Q: Diamond has a density of 3.52 g/mL. What is the volume in cubic centimeters of a diamond with a mass of 15.1 g?
- 4.3 cm<sup>3</sup>
- 4.29 cm<sup>3</sup>
- 0.233 cm<sup>3</sup>
- 53 cm<sup>3</sup>
- 53.2 cm<sup>3</sup>
A: 4.29 cm<sup>3</sup>

Q: A calculator answer of 423.6059 must be rounded off to three significant figures. What answer is reported?
- 423
- 424
- 1.7420
- 423.6
- 423.7
A: 424

Q: How many pounds are in 3.5 kg?
- 7.7 lb
- 1.59 lb
- 0.629 lb
- 1.6 lb
- 7.70 lb
A: 7.7 lb

Q: The correct answer for the addition of 7.5 g + 2.26 g + 1.311 g + 2 g is ________.
- 13.071 g
- 13 g
- 13.0 g
- 10 g
- 13.1 g
A: 13 g

Q: In which of the following is the metric unit paired with its correct abbreviation?
- microgram / mg
- milliliter / mL
- centimeter / km
- kilogram / cg
- gram / gm
A: milliliter / mL

Q: Which of the following is the largest unit?
- millimeter
- micrometer
- meter
- decimeter
- kilometer
A: kilometer

Q: Which of the following measurements has three significant figures?
- 0.005 m
- 510 m
- 0.510 m
- 0.051 m
- 5100 m
A: 0.510 m

Q: When 2610 + 11.7 + 0.22 are added, the answer to the correct number of decimal places is ________.
- 2621.92
- 2621.9
- 2621
- 2620
- 2600
A: 2620

Q: The number of significant figures in the measurement of 45.030 mm is ________.
- none
- three
- four
- five
- six
A: five

Q: The amount of space occupied by a substance is its ________.
- mass
- density
- weight
- length
- volume
A: volume

Q: How many significant figures are in the number 0.00208?
- six
- two
- three
- four
- five
A: three

Q: A value of 345 mm is a measure of ________.
- density
- mass
- temperature
- volume
- length
A: length

Q: 5.21 cm is the same length as ________.
- 0.0521 m
- 52.1 dm
- 5.21 mm
- 0.00521 km
- 5210 m
A: 0.0521 m

Q: In the number 12.345, the 4 is in the ________ place.
- tens
- ones
- tenths
- hundredths
- thousandths
A: hundredths

Q: Write 540 000 in scientific notation.
- 0.54 × 10<sup>6</sup>
- 54 × 10<sup>8</sup>
- 5.4 × 10<sup>-5</sup>
- 5.4 × 10<sup>5</sup>
- 5.4
A: 5.4 × 10<sup>5</sup>