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SciencebackChemistrybackIntroductory / Preparatory ChemistrybackChemistry An Introduction to General Organic and Biological ChemistrybackPractice Set 2498back

Matter And Energy

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Question 1
Free
Multiple Choice

Which of the following is an element?

Choose correct answer/s
A

tin

B

water

C

salt

D

sugar

E

iced tea

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Question 2
Free
Multiple Choice

Helium is a(n) ________ .

Choose correct answer/s
A

compound

B

heterogeneous mixture

C

element

D

homogeneous mixture

E

electron

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Question 3
Free
Multiple Choice

Coins in a piggy bank are an example of a(n) ________ .

Choose correct answer/s
A

compound

B

heterogeneous mixture

C

element

D

homogeneous mixture

E

none of the above

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Question 4
Free
Multiple Choice

Gold in a ring is a(n) ________ .

Choose correct answer/s
A

compound

B

heterogeneous mixture

C

element

D

homogeneous mixture

E

none of the above

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Question 5
Free
Multiple Choice

Which of the following is not an element?

Choose correct answer/s
A

tin

B

water

C

gold

D

silver

E

carbon

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Question 6
Multiple Choice

Which of the following is a homogeneous mixture?

Choose correct answer/s
A
noodle soup
B
water
C
sugar
D
tea
E
carbon
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Question 7
Multiple Choice

Which of the following is a heterogeneous mixture?

Choose correct answer/s
A
noodle soup
B
water
C
sugar
D
tea
E
carbon
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Question 8
Multiple Choice

Which of the following is not a characteristic of the solid state?

Choose correct answer/s
A
has a definite shape
B
has a definite volume
C
particles are close together
D
particles are moving very fast
E
particles are in fixed positions
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Question 9
Multiple Choice

Which of the following is an example of a physical change?

Choose correct answer/s
A
grinding coffee beans
B
baking a cake
C
converting water to hydrogen and oxygen
D
digesting a cheeseburger
E
burning coal
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Question 10
Multiple Choice

Which of the following would not be a physical change?

Choose correct answer/s
A
freezing water to make ice cubes
B
tearing a piece of aluminum foil
C
boiling water for soup
D
burning gasoline in a lawnmower
E
melting gold to make jewelry
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Question 11
Multiple Choice

Which of the following is a chemical change?

Choose correct answer/s
A
cutting a rope
B
bending a steel rod
C
making a snowman
D
burning sugar
E
melting gold
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Question 12
Multiple Choice

Which of the following is a physical change?

Choose correct answer/s
A
baking a cake
B
solid dry ice changing to a gas
C
fermenting grapes to produce wine
D
digesting a meal
E
a tomato ripening
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Question 13
Multiple Choice

Which of the following is a chemical change?

Choose correct answer/s
A
burning natural gas
B
melting ice
C
hammering gold into foil
D
cutting a tomato
E
cutting paper
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Question 14
Multiple Choice

Which of the following is a physical change?

Choose correct answer/s
A
iron rusts
B
ice melts
C
sugar caramelizes
D
food digests
E
natural gas burns
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Question 15
Multiple Choice

Which of the following is a property of a solid?

Choose correct answer/s
A
It takes the shape of the container.
B
It fills the volume of the container.
C
The particles move at a rapid rate.
D
The interactions between its particles are very weak.
E
The particles have fixed positions and are very close together.
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Question 16
Multiple Choice

In a gas,the distance between the particles is ________ .

Choose correct answer/s
A
very close relative to the size of the molecules
B
close relative to the size of the molecules
C
fixed relative to the size of the molecules
D
small relative to the size of the molecules
E
very large relative to the size of the molecules
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Question 17
Multiple Choice

Which of the following is a physical property of both liquids and gases?

Choose correct answer/s
A
has its own shape
B
has a definite volume
C
has strong interactions between its particles
D
has randomly arranged particles
E
has large spaces between molecules
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Question 18
Multiple Choice

Which one of the following properties describes a liquid?

Choose correct answer/s
A
has its own shape
B
particles are close together and move randomly
C
particles move very rapidly
D
fills the entire volume of the container
E
There is essentially no interaction between the particles.
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Question 19
Multiple Choice

In which of the following would the particles move most rapidly?

Choose correct answer/s
A
ice at -20 °C
B
water at 20 °C
C
steam at 110 °C
D
boiling water
E
ice at 0 °C
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Question 20
Multiple Choice

If the temperature is 20.°C,what is the corresponding temperature on the Fahrenheit scale?

Choose correct answer/s
A
-22 °F
B
68 °F
C
43 °F
D
239 °F
E
94 °F
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