Chemistry Quiz: Changes of State

What is the process of changing from liquid to gas that can happen at any temperature?

• Melting

• Boiling

• Condensing

• Evaporation

What is the change of state from gas to liquid called?

• Melting

• Evaporation

• Boiling

• Condensing

What happens to the particles in the gas state when they change to the liquid state?

• They spread out

• They get closer and touch each other

• They separate from each other

• They move faster

What is the temperature at which a substance boils called?

• Boiling point

• Melting point

• Condensing point

• Freezing point

The change of state from liquid to gas that only happens if all liquid particles are hot enough.

• melting

• Condensation

• Boiling

• Evaporation.

A substance has a high boiling point if its particles hold together ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,.

• weekly

• strongly

When a substance changes from one state to another, its particles stay the same

• False

• True

When a substance changes from one state to another, its particles stay the same (do not change). The things that change are:

• How the particles are arranged.

• How the particles move.

• The separation of the particles.

• The colour of the particles.

Different substances have ................................... boiling points.

• similar

• different