CHM151 Module 1 Quiz | ACCURATE
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You have to calculate the mass of a 30.0 mL liquid sample with density of 1.52 g/mL, but you
have forgotten the formula. Which way of reasoning would help you in finding the correct
mass?
Select one:
a. If 1 mL of a liquid has the mass of 1.52 g, then 30.0 mL has the mass of _____ g.
b. If 1.52 mL of a liquid has the mass of 1 g, then 30.0 mL has the mass of _____ g.
- ANSWER A
Which one of the following has the element name and symbol correctly matched?
Select one:
a. S, sodium
b. Tn, tin
c. N, neon
d. B, bromine
e. Fe, iron
- ANSWER E
Gases and liquids share the property of __________.
Select one:
a. indefinite shape
b. definite shape
c. compressibility
,d. definite volume
e. incompressibility
- ANSWER A
Which calculation clearly shows a conversion between temperatures in degrees Celsius, t(°C),
and temperature in Kelvins, T(K)?
Select one:
a. T(K) = 273.15 - t(°C)
b. T(K) = [t(°C) + 32] × 1.8
c. T(K) = t(°C)
d. T(K) = t(°C) + 273.15
e. T(K) = [t(°C) - 32] / 1.8
- ANSWER D
If an object is accelerating at a rate of 25 m/s^2, how long (in seconds) will it take to reach a
speed of 550 m/s? (Assume an initial velocity of zero.)
Select one:
a. 2.3 × 10^2
b. 0.045
c. 1.2 × 10^4
d. 1.4 × 10^4
e.
- ANSWER E
Of the following, __________ is the largest mass.
Select one:
a. 2.5 × 10^-2 mg
b. 2.5 × 10^10 ng
, c. 2.5 × 10^9 fg
d. 2.5 × 10^15 pg
e. 25 kg
- ANSWER E
Which of the following are chemical processes?
1. rusting of a nail
2. freezing of water
3. decomposition of water into hydrogen and oxygen gases
4. compression of oxygen gas
Select one:
a. 1, 2
b. 1, 4
c. 1, 3, 4
d. 2, 3, 4
e. 1, 3
- ANSWER E
Which one of the following is often easily separated into its components by simple techniques
such as filtering or decanting?
Select one:
a. homogeneous mixture
b. solutions
c. compounds
d. heterogeneous mixture
e. elements
- ANSWER D
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