Particulate Nature of Matter

Which statement best explains the fact that gases can be compressed?

• The particles in a gas do not have a fixed volume.

• The particles in a gas are very far apart.

• The particles in a gas have no force of attraction (bonds) between them.

• The particles in a gas are constantly moving very rapidly.

Which of the following states of matter has the highest density?

• Solid

• Liquid

• Gas

In which state of matter are particles held together by weak forces of attraction and are able to move freely over long distances?

• Solid

• Liquid

• Gas

Which description best matches this particle model?

• Closely packed and vibrate about a fixed position.

• Particles are close together but can slide past each other.

• Particles have lots of energy and can move around freely

In a solid, ___________________. (Select all that apply).

• Particles are packed closely together

• Particles have a fixed shape

• Particles vibrate about their fixed positions

• Particles slide across one another

• There are strong forces of attraction between particles.