Test bank
Chemistry: Atoms First
By Paul Flowers, Edward J. Neth ,Robinson, Klaus
Theopold, Richard Langely
2nd edition
,Openstax chemistry supplemental test items
Chapter 01: essential ideas
Chapter 01: essential ideas
1. A 0.150 kg metallic block measures 25.0 mm in length, 43.0 mm in width, and 19 .0
mm in height. What is the density of the metallic block in g/cm3? (outcome # 3) (dok
2)
A. 7.34 x 10-6 g/cm3
B. 7.34 x 10-3 g/cm3
C. 7.34 g/cm3*
2. An object with a mass of 0.255 kg and density of 2.89 g/cm3 measures 34 mm in length
and 46 mm in width. What is the height of the object? (outcome # 3) (dok 3)
A. 5.6 cm*
B. 5.6 x 10-2 cm
C. 7.2 x 10-4 cm
3. How would you determine the density of an irregular object? (outcome # 3) (dok 3)
A. It would be impossible to determine the mass of the object without
more information.
B. D = m/v, so measure the mass of the object using a balance. Then to find volume,
.com measure the height,
width, and length using an appropriate measuring tool.
C. D = m/v, so measure the mass of the object using a balance. Then to find volume,
fill a graduated cylinder with a known amount of water and immerse the object
in the water. The amount of displaced water is the volume in cm3 or ml.*
4. What is the base unit for length in the metric system? (outcome # 6) (dok 1)
A. M*
B. Km
C. Mm
5. What is the base unit for mass in the metric system? (outcome # 6) (dok 1)
A. Kg
B. G*
C. Mg
6. What is the base unit for volume in the metric system? (outcome # 6) (dok 1)
A. L*
B. Ml
C. Dl
7. It is important that scientists use units that are understood on a global level. These units
are referred to as si units which stands for . (outcome # 6) (dok 1)
A. Standard international units
Page 1 of 8
,Openstax chemistry supplemental test items
Chapter 01: essential ideas
B. Standard intercontinental units
C. International system of units*
8. Convert 18.50 ft to the si unit for length. (outcome # 6) (dok 2)
A. 563.9 cm
B. 5.639 m*
C. 0.005639 km
9. An experimental mouse weighs about 4.41 x 10-2 lbs. What would the weight be in the
si unit for mass? (outcome # 6) (dok 2)
A. 20.0 g
B. 0.0200 kg*
C. 20,003 mg
10. Accuracy is defined as how close a measured value comes to a . (outcome # 6) (dok
1)
A. Core value
B. Fixed value
C. True value*
11. Precision is defined as how the measured values are to one another. (outcome #
6) (dok 1)
A. Common
B. Reproducible
*
C. Accurate
12. An experiment requires you to make several measurements. Based on the values in
the table below, what would be the best statement that represents the data set if
the true value is 0.2135? (outcome # 11) (dok 2)
Trial a Trial b Trial c
0.2139 0.2893 0.2135
0.2130 0.3210 0.2134
0.2133 0.2999 0.3712
0.2135 0.2998 0.3715
A. The measurements in trial a are accurate and precise, trial b is neither accurate
nor precise, and trial c is accurate however, not precise.
B. The measurements in trial a are accurate and precise, trial b is neither accurate
nor precise, and trial c is precise however, not accurate.
C. The measurements in trial a are accurate and precise, trial’s b and c are
neither accurate nor precise.*
13. An experiment requires you to make several measurements. Based on the values in
the table below, what would be the best statement that represents the data set if
the true value is 2.73? (outcome # 11) (dok 2) (paired item 1)
Page 2 of 8
Credit: modification of assessment items provided by lumen learning, with generous
funding
, Openstax chemistry supplemental test items
Chapter 01: essential ideas
Trial a Trial b Trial c
2.73 3.00 2.77
3.05 3.03 2.79
3.09 2.99 3.31
2.44 3.01 2.05
A. The measurements in trial b are precise, however, not accurate. Trial’s a and c
are neither accurate nor precise.*
B. The measurements in trial b are accurate, however, not precise. Trial’s a and c
are neither accurate nor precise.
C. The measurements in trial’s a, b, and c are neither accurate nor precise.
14. Which of the following would be considered a chemical change? (outcome # 9) (dok 1)
A. A rusting nail*
B. Melting ice
C. Crushing an aluminum can
15. Which of the following would be considered a physical change? (outcome # 9) (dok 1)
A. Digesting food
B. Burning paper
C. Boiling water*
16. A salt water solution is classified as what type of matter? (outcome # 9) (dok 1)
A. Homogeneous mixture* t estbankseller.com
B. Heterogeneous mixture
C. Pure substance
17. How many significant figures are in 0.0000401 kg? (outcome # 5) (dok 1)
A. 3*
B. 7
C. 2
18. How many significant figures are in 0.20 l? (outcome # 5) (dok 1) (paired item 1)
A. 3
B. 1
C. 2*
19. Express 1.40 x 10-3 l in decimal notation. (outcome # 5) (dok 1)
A. 0.00140 l*
B. 0.0014 l
C. 0.001 l
20. What is the answer for the following calculation: (1.249 - 0.0234) x 139.37? (outcome
# 5) (dok 2)
A. 170.812
B. 170.8*
Page 3 of 8
Credit: modification of assessment items provided by lumen learning, with generous
funding
Chemistry: Atoms First
By Paul Flowers, Edward J. Neth ,Robinson, Klaus
Theopold, Richard Langely
2nd edition
,Openstax chemistry supplemental test items
Chapter 01: essential ideas
Chapter 01: essential ideas
1. A 0.150 kg metallic block measures 25.0 mm in length, 43.0 mm in width, and 19 .0
mm in height. What is the density of the metallic block in g/cm3? (outcome # 3) (dok
2)
A. 7.34 x 10-6 g/cm3
B. 7.34 x 10-3 g/cm3
C. 7.34 g/cm3*
2. An object with a mass of 0.255 kg and density of 2.89 g/cm3 measures 34 mm in length
and 46 mm in width. What is the height of the object? (outcome # 3) (dok 3)
A. 5.6 cm*
B. 5.6 x 10-2 cm
C. 7.2 x 10-4 cm
3. How would you determine the density of an irregular object? (outcome # 3) (dok 3)
A. It would be impossible to determine the mass of the object without
more information.
B. D = m/v, so measure the mass of the object using a balance. Then to find volume,
.com measure the height,
width, and length using an appropriate measuring tool.
C. D = m/v, so measure the mass of the object using a balance. Then to find volume,
fill a graduated cylinder with a known amount of water and immerse the object
in the water. The amount of displaced water is the volume in cm3 or ml.*
4. What is the base unit for length in the metric system? (outcome # 6) (dok 1)
A. M*
B. Km
C. Mm
5. What is the base unit for mass in the metric system? (outcome # 6) (dok 1)
A. Kg
B. G*
C. Mg
6. What is the base unit for volume in the metric system? (outcome # 6) (dok 1)
A. L*
B. Ml
C. Dl
7. It is important that scientists use units that are understood on a global level. These units
are referred to as si units which stands for . (outcome # 6) (dok 1)
A. Standard international units
Page 1 of 8
,Openstax chemistry supplemental test items
Chapter 01: essential ideas
B. Standard intercontinental units
C. International system of units*
8. Convert 18.50 ft to the si unit for length. (outcome # 6) (dok 2)
A. 563.9 cm
B. 5.639 m*
C. 0.005639 km
9. An experimental mouse weighs about 4.41 x 10-2 lbs. What would the weight be in the
si unit for mass? (outcome # 6) (dok 2)
A. 20.0 g
B. 0.0200 kg*
C. 20,003 mg
10. Accuracy is defined as how close a measured value comes to a . (outcome # 6) (dok
1)
A. Core value
B. Fixed value
C. True value*
11. Precision is defined as how the measured values are to one another. (outcome #
6) (dok 1)
A. Common
B. Reproducible
*
C. Accurate
12. An experiment requires you to make several measurements. Based on the values in
the table below, what would be the best statement that represents the data set if
the true value is 0.2135? (outcome # 11) (dok 2)
Trial a Trial b Trial c
0.2139 0.2893 0.2135
0.2130 0.3210 0.2134
0.2133 0.2999 0.3712
0.2135 0.2998 0.3715
A. The measurements in trial a are accurate and precise, trial b is neither accurate
nor precise, and trial c is accurate however, not precise.
B. The measurements in trial a are accurate and precise, trial b is neither accurate
nor precise, and trial c is precise however, not accurate.
C. The measurements in trial a are accurate and precise, trial’s b and c are
neither accurate nor precise.*
13. An experiment requires you to make several measurements. Based on the values in
the table below, what would be the best statement that represents the data set if
the true value is 2.73? (outcome # 11) (dok 2) (paired item 1)
Page 2 of 8
Credit: modification of assessment items provided by lumen learning, with generous
funding
, Openstax chemistry supplemental test items
Chapter 01: essential ideas
Trial a Trial b Trial c
2.73 3.00 2.77
3.05 3.03 2.79
3.09 2.99 3.31
2.44 3.01 2.05
A. The measurements in trial b are precise, however, not accurate. Trial’s a and c
are neither accurate nor precise.*
B. The measurements in trial b are accurate, however, not precise. Trial’s a and c
are neither accurate nor precise.
C. The measurements in trial’s a, b, and c are neither accurate nor precise.
14. Which of the following would be considered a chemical change? (outcome # 9) (dok 1)
A. A rusting nail*
B. Melting ice
C. Crushing an aluminum can
15. Which of the following would be considered a physical change? (outcome # 9) (dok 1)
A. Digesting food
B. Burning paper
C. Boiling water*
16. A salt water solution is classified as what type of matter? (outcome # 9) (dok 1)
A. Homogeneous mixture* t estbankseller.com
B. Heterogeneous mixture
C. Pure substance
17. How many significant figures are in 0.0000401 kg? (outcome # 5) (dok 1)
A. 3*
B. 7
C. 2
18. How many significant figures are in 0.20 l? (outcome # 5) (dok 1) (paired item 1)
A. 3
B. 1
C. 2*
19. Express 1.40 x 10-3 l in decimal notation. (outcome # 5) (dok 1)
A. 0.00140 l*
B. 0.0014 l
C. 0.001 l
20. What is the answer for the following calculation: (1.249 - 0.0234) x 139.37? (outcome
# 5) (dok 2)
A. 170.812
B. 170.8*
Page 3 of 8
Credit: modification of assessment items provided by lumen learning, with generous
funding
