AnswersChemistryProperties of Matter and Compounds

Properties of Matter and Compounds — Test Answers

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21
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Which element is likely to be the most brittle?

A
cobalt
B
zinc
C
platinum
D
selenium
22
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Which best compares the particles of the substance when it is in region 1 with the particles of the substance when it is in region 3?

A
The particles have more kinetic energy in region 1.
B
The particles are more orderly in region 1.
C
The particles have less freedom of motion in region 3.
D
The particles are slower in region 3.
23

Considering the temperature vs. time graph, how does the temperature at the beginning of a change of state compare with the temperature at the end of the change?

A
The temperature is usually higher.
B
The temperature is always lower.
C
The temperature is usually lower.
D
The temperature is always the same.
24

Which arrow represents the transition in which dew is formed?

A
1
B
2
C
4
D
6
25

What do the broken lines connected to hydrogen atoms represent in this diagram?

A
the weakest intermolecular forces
B
the strongest intramolecular forces
C
the strongest intermolecular forces
D
the weakest intramolecular forces

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