Chemistry Ch.3 Review Question Preview (ID: 32742)


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Convert 342 L to gallons.
a) 90.6 gal
b) 1450.1 gal
c) 80.7 gal
d) none of the choices

Density is found by dividing __________.
a) mass by volume
b) volume by mass
c) mass by area
d) area by mass

What is the density of an object having a mass of 7.2 g and a volume of 34 mL?
a) 0.21 g/mL
b) 4.7 g/mL
c) 244.8 g/mL
d) none of above

Which of the following volumes is the smallest?
a) one microliter
b) one liter
c) one milliliter
d) one deciliter

What is the quantity 0.0097 meters expressed in centimeters?
a) 0.97 cm
b) 9.7 cm
c) 0.097 cm
d) 97 cm

What is the temperature -48 degrees Celsius in kelvins?
a) 225 K
b) 321 K
c) -225 K
d) none of the choices

Express the sum of 8.79 m and 6.0 m using the correct number of significant figures.
a) 14.8 m
b) 14.79 m
c) 15
d) none of the choices

How many significant figures are in the measurement 54,500 mg?
a) 3
b) 4
c) 5
d) 2

Which of the following measurements contains two significant figures?
a) 0.00067 L
b) 0.00670 L
c) 0.00607 L
d) 0.00600 L

What is the result of adding 4.5 x10^3 and 2.7 x 10^2?
a) 4.77 x 10^3
b) 4.77 x 10^2
c) 3.15 x 10^3
d) 3.15 x 10^2

The diameter of a carbon atom is 0.000000874 m. What is this number in scientific notation?
a) 8.74 x 10^-7
b) 8.74 x 10^7
c) 87.4 x 10^-6
d) 87.4 x 10^6

What is the closeness to a true value?
a) accuracy
b) precision
c) absolute zero
d) weight

If you are traveling at 85 miles per hour, how fast are you traveling in meters per second?
a) 38 m/s
b) 136787.6 m/s
c) 124.7 m/s
d) none of the choices

The quantity of matter an object contains is ________________.
a) mass
b) volume
c) weight
d) none of the choices

The SI scale for temperature is _________________.
a) Kelvin
b) Celsius
c) Fahrenheit
d) none of the choices

The force of gravity on an object is called ________________.
a) weight
b) mass
c) volume
d) none of the choices

Express 52,600 km in scientific notation.
a) 5.26 x 10^4
b) 5.26 x 10^-4
c) 52.6 x 10^3
d) 52.6 x 10^-3

What is the result of multiplying 3.4 x 10^9 by 4.3 x 10^-6?
a) 1.5 x 10^4
b) 14.6 x 10^3
c) 1.5 x 10^15
d) 14.6 x 10^14

Which group of measurements is the most precise?
a) 2 g, 2.5 g, 3 g
b) 2 g, 3 g, 4 g
c) 2.0 g, 3.0 g, 4.0 g
d) none of the choices

What is the measurement 233.008 mm rounded off to four significant digits?
a) 233.0 mm
b) 233 mm
c) 233.01 mm
d) 230 mm

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