Chemical Properties Answers

57 verified answers
1
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What must occur in order for an amendment to be ratified?

A
The president must sign it.
B
Two-thirds of the House and Senate must approve it.
C
Every state must approve it.
D
Each person in Congress must support it.
2
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What did you include in your response? Check all that apply.

A
The windsurfer, his board, and the air and water around him are all made of matter.
B
That matter is made up of very small particles called atoms.
3

Which statement best describes the movement of atoms in a solid?

A
They are able to slide past each other.
B
They spread apart as far as possible.
C
They have no freedom to move.
D
They are free to move in all directions.
4

Which statement best describes a characteristic of gases?

A
Gases can be compressed, or squeezed together.
B
The particles of gases are packed close together.
C
The particles of gases spread our vertically instead of horizontally.
D
Gases have a definite shape and volume.
9

Melting butter is a physical change. Which best describes what is happening?

A
The butter changes into a different substance.
B
The butter contains a new arrangement of atoms.
C
The butter cannot turn into a solid again.
D
The butter no longer contains the same number of atoms.
10

What did you include in your response? Check all that apply.

A
The particles of rock are rearranged.
B
The sizes and shapes of the rocks are changed.
C
The identities and total mass of the rocks remain the same.
D
A physical change is a change in some of the physical properties of matter, but not its identity.
11

Baking a cake:

A
physical change
B
chemical change
13

Which statements describe chemical changes? Check all that apply.The after-rain smell is produced by an interaction between rain and the oils released by plants.A homemade volcano can be created by combining baking soda and vinegar. When it erupts, carbon dioxide gas is released.Sheep are sheared for their wool. The wool is cleaned and twisted into yarn. The yarn is dyed and used to knit clothing.The Statue of Liberty has turned green over time due to the reaction of copper with carbon dioxide and water.Mosaic art is created by smashing colored glass tiles and rearranging them to form a picture or design.

A
The after-rain smell is produced by an interaction between rain and the oils released by plants.
B
A homemade volcano can be created by combining baking soda and vinegar. When it erupts, carbon dioxide gas is released.
C
Sheep are sheared for their wool. The wool is cleaned and twisted into yarn. The yarn is dyed and used to knit clothing.
D
The Statue of Liberty has turned green over time due to the reaction of copper with carbon dioxide and water.
E
Mosaic art is created by smashing colored glass tiles and rearranging them to form a picture or design.
14

What was the purpose of popular sovereignty?

A
To give more power to the states instead of to the federal government
B
To give the nation’s people control and power over the government
C
To remove power from the states to give to the national government
15

Smashing a soda can:

A
physical change
B
chemical change
16

The element nickel has a boiling point of 2,913°C.

A
physical property
B
chemical property
17

Shredding paper:

A
physical change
B
chemical change
20

Burning wood:

A
physical change
B
chemical change

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