AnswersEA Academy Civics 9Our Role in the Legal Process

Compounds Answers

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6

Which property of physical changes explains why matter is conserved in a physical change?

A
The arrangements of particles do not change, and the bonds between atoms do not break.
B
Mass, not energy, changes in a physical change.
C
Energy and mass change in a physical change.
D
The bonds between atoms do not break; it is only the arrangement that changes.
7

Which statement gives two characteristics of all liquids?

A
They spread out to fill space and have atoms that vibrate in place.
B
They have atoms that vibrate in place and have a definite shape.
C
They will change shape to fit a container and have definite volume.
D
They have definite volume and have atoms that move freely in all directions.
8

If a person has the values for an object’s density and volume, what value can be calculated?

A
the object’s size
B
the object’s mass
C
the shape the object forms in a container
D
the amount of space the object takes up
9

During which changes of state do atoms that cannot move past one another become free to move?

A
vaporization and sublimation
B
boiling and deposition
C
sublimation and melting
D
condensation and melting
10

What happens to the total mass of a substance undergoing a physical change?

A
It stays the same.
B
It doubles.
C
It triples.
D
It is reduced.
11

Four students are analyzing four different substances and recording their findings in this table.Which most describes this table?

Question illustration
A
Leonna has a solid, Xiao and Blake have liquids, and Amir has a gas.
B
Leonna and Amir have gasses, Xiao has a liquid, and Blake has a solid.
C
Leonna has a solid, Xiao has a liquid, Blake has a gas, and Amir made a mistake.
D
Leonna has a solid, Xiao has a liquid, Blake made a mistake, and Amir has a gas.
12

An amount of nitrogen undergoes a physical change and increases its volume. What can be known about this physical change?

A
The boiling point of the nitrogen increased.
B
The mass of nitrogen increased.
C
The color changed.
D
The density changed.
13

Which ranks these materials by the attraction between their atoms from the weakest to the strongest?

A
oxygen gas, liquid water, liquid honey, solid iron ore
B
liquid water, liquid honey, oxygen gas, solid iron ore
C
solid iron ore, liquid honey, liquid water, oxygen gas
D
oxygen gas, liquid honey, liquid water, solid iron ore
14

Which state(s) of matter have no definite shape or volume?

l
liquids and solids
l
liquids and gasses
g
gasses
s
solids
15

Which object would sink in honey, which has a density of 1.4 g/cm³?

A
Object 1 (0.9 g/cm³)
B
Object 2 (1.2g /cm³)
C
Object 3 (0.2 g/cm³)
D
Object 4 (2.3 g/cm³)
16

downloaduploadprintexport

A
download
B
upload
C
print
D
export
17

Which are examples of types of audio media that can support a presentation? Check all that apply.musicrecordingsmoviesphotographspodcastssound bites

A
music
B
recordings
C
movies
D
photographs
E
podcasts
F
sound bites
18

Which is the best example of online multimedia?

A
a webpage that includes games and videos
B
a CD that includes historical documentaries
C
a sheet of teacher’s notes listing examples of multimedia
D
a research paper explaining multimedia
20

Which examples are relevant sources for students to use in research? Check all that apply.a journal entry written by a professor who is considered an experta report written by an independent government sourcea presentation by a company that includes paid informationa document published by a renowned organizationa scientific paper put out by a non-profit organizationa blog whose author tries to sell a product or service

A
a journal entry written by a professor who is considered an expert
B
a report written by an independent government source
C
a presentation by a company that includes paid information
D
a document published by a renowned organization
E
a scientific paper put out by a non-profit organization
F
a blog whose author tries to sell a product or service

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