Chem Principles final exam form A

Which picture best represents a liquid?

• left
• center
• right

How does the speed of the molecules on the left compare with the other two pictures?

• slower
• the same
• faster

What happens to the molecules' speed as they get warmer?

• speeds up
• slows down
• stays the same

What happens to the molecules' arrangement as they get cooler?

• farther apart
• closer together
• stays the same

Which state of matter does not take the shape of its container?

• gas
• liquid
• solid

Flammability, texture, and shape are all examples of

• chemical properties
• chemical changes
• physical changes
• physical properties

____________ is the temperature when a solid turns into a liquid.

• Melting point
• Freezing point
• Boiling point

____________ is the temperature when a liquid turns into a solid.

• Melting point
• Freezing point
• Boiling point

____________ is the temperature when a liquid turns into a gas.

• Melting point
• Freezing point
• Boiling point

__________ is when a gas turns into a liquid.

• melting
• freezing
• condensation
• evaporation