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Matter Review 2
Test Description: Properties of matter; law of conservation of mass; classification of matter;
Instructions: Answer all questions to get your test result.
1) Select the intensive physical property from the list below.
A
The nugget had a volume of 4.31 mL
B
Measure a piece of aluminum foil to 20 inches to sculpt a mole for Mole Day
C
Water boils at 100 C
D
A lead doorstop weighs 1.62 kg
2) Select the extensive physical property from the list below.
A
the aluminum cylinder had a calculated area of 2.37 cm2
B
ethanol is in the liquid state at 70 C
C
the melting point of water is 0 C
D
the density of an aluminum bar was determined to be 2.70 g/cm3
3) Given the material, 3 Jb2Sm, how would it be classified?
A
element
B
compound
C
homogeneous mixture
D
heterogeneous mixture
4) How many molecules are present in this material: 2 Sm2 + 3 R2Sm
A
13
B
9
C
3
D
5
5) Which of the following can be separated by physical means?
A
mixture
B
both elements and compounds
C
element
D
compound
6) Filtration separates components of a mixture by this property:
A
density
B
sizes of particles
C
boiling points
D
solubility
7) A beaker of some material contains three phases. The material is (a)
A
compound
B
homogeneous mixture
C
hetergeneous mixture
D
element
8) Matter that is uniform throughout in definite proportions would be classified as a(n)
A
heterogeneous mixture
B
homogeneous mixture
C
solution
D
substance
9) Elements and compounds are classified as
A
heterogeneous mixtures
B
solutions
C
pure substances
D
homogeneous mixtures
10) You are evaluating a cooling curve of time vs temperature for ethanol. You notice that the temperature is stationary for several minutes at both -17 C and 78 C. Account for this anomaly.
A
the kinetic energy of the particles is decreasing
B
the heat source has been removed from beneath the container
C
the substance is first melting then boiling
D
the substance is in transition from one state of matter to another
*select an answer for all questions
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