Review Chemistry

How do particles in the solid state move?

• freely

• slip on other particles

• vibrate

• no particles

Which state is the substance on the hand in this picture?

In which state the attractive force between particles is the weakest?

What space has no particles?

The force between particles in several states is called the _____ force.

A solid has the _____ shape

Which state(s) can be compressed/squashed?

• solid

• liquid

• gas

• plasma

Which state(s) has changeable volume?

• solid

• liquid

• gas

• plasma

When heating a solid, the particles inside

• stay at the same position.

• change their sizes.

• expand and move faster.

• go to the fixed position.

When cooling a liquid, the particles inside

• move slower and tightly packed.

• change their shape.

• expand and move faster.

• escape from the liquid.