Question 1

How would you describe the size of the following object? a blood cell

Accepted Answer

A)  microscopic 
B)  macroscopic 
C)  submicroscopic 
D)  all of the above 
E)  none of the above 
A)  microscopic 
B)  macroscopic 
C)  submicroscopic 
D)  all of the above 
E)  none of the above

Question 2

Humidity is a measure of the amount of water vapor in the atmosphere. Why is humidity always very low inside your kitchen freezer?

Accepted Answer

A)  The kitchen freezer is most often sealed off from the atmosphere. 
B)  The frost in the freezer absorbs this moisture. 
C)  It is not possible for water to be in the gaseous phase at temperatures below 0°C. 
D)  At the cold temperatures of your kitchen freezer, water molecules in the vapor phase are moving relatively slowly, which makes it easier for them to stick to inner surfaces within the freezer or to other water molecules. 
A)  The kitchen freezer is most often sealed off from the atmosphere. 
B)  The frost in the freezer absorbs this moisture. 
C)  It is not possible for water to be in the gaseous phase at temperatures below 0°C. 
D)  At the cold temperatures of your kitchen freezer, water molecules in the vapor phase are moving relatively slowly, which makes it easier for them to stick to inner surfaces within the freezer or to other water molecules.

Question 3

Which would have the most kinetic energy? The same mass of ________.

Accepted Answer

A)  a hot gas. 
B)  a cool gas. 
C)  a solid. 
D)  a hot liquid. 
E)  a cool liquid. 
A)  a hot gas. 
B)  a cool gas. 
C)  a solid. 
D)  a hot liquid. 
E)  a cool liquid.

Question 4

Each sphere in the diagrams below represents an atom. Joined spheres represent molecules. Assume the two boxes are at the same temperature. Which box contains a higher boiling point liquid?

Accepted Answer

A)  Box A 
B)  Box B 
C)  both Box A and Box B 
D)  neither box 
A)  Box A 
B)  Box B 
C)  both Box A and Box B 
D)  neither box

How would you describe the size of the following object? a blood cell

Humidity is a measure of the amount of water vapor in the atmosphere. Why is humidity always very low inside your kitchen freezer?

Which would have the most kinetic energy? The same mass of ________.

Each sphere in the diagrams below represents an atom. Joined spheres represent molecules. Assume the two boxes are at the same temperature. Which box contains a higher boiling point liquid?

About Science

Elements of Chemistry

Subatomic Particles

The Atomic Nucleus

How Atoms Bond

How Molecules Mix

How Water Behaves

How Chemicals React

Acids and Bases in Our Environment

Oxidations and Reductions Charge the World

Organic Compounds

Nutrients of Life

Medicinal Chemistry

Optimizing Food Production

Protection Water and Air Resources

Capturing Energy

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Exam 2: Particles of Matter

How would you describe the size of the following object? a blood cell

Humidity is a measure of the amount of water vapor in the atmosphere. Why is humidity always very low inside your kitchen freezer?

Which would have the most kinetic energy? The same mass of ________.

Each sphere in the diagrams below represents an atom. Joined spheres represent molecules. Assume the two boxes are at the same temperature. Which box contains a higher boiling point liquid?

About Science

Elements of Chemistry

Subatomic Particles

The Atomic Nucleus

How Atoms Bond

How Molecules Mix

How Water Behaves

How Chemicals React

Acids and Bases in Our Environment

Oxidations and Reductions Charge the World

Organic Compounds

Nutrients of Life

Medicinal Chemistry

Optimizing Food Production

Protection Water and Air Resources

Capturing Energy

Filters