Particle Theory/Heat

The more energy particles have...

• the faster they move.

• the farther apart they tend to be.

• the hotter they are.

• All of the above

100% pure orange juice is an example of a homogeneous mixture.

• True

• False

Why does a solvent (water) dissolve a solute (sugar) faster when it is hot?

• There is more space between the particles of the solvent.

• The solute particles get "bumped" more by the solvent.

• The solvent particles are moving faster.

• All of the above.

What is the BEST answer to why metal is hard?

• It is a solid.

• The particles are very attracted to each other so they are much closer together (denser).

• It is metal and metals are hard.

• It is a conductor.

When a solute (sugar) dissolves in a solvent (water), where do the solute particles go?

• In between the solvent particles.

• The solute combines with the solvent particles.

• The solute disappears.

• It floats to the bottom.

The substance in a mixture that DISSOLVES that there tends to be less of is called...

• the solute.

• the solvent.

Why does a solute (sugar, salt, etc.) dissolve into a solvent (water, ethanol, etc.)

• They fit together like puzzle pieces.

• The solute is more attracted to the solvent than it is to itself.

• Because the particles melt.

• The particles join together.

A mixture that only has a very small amount of solute is referred to as...

• Dilute

• Concentrated

• Saturated

• Super Saturated

Which of the following is a heterogeneous mixture?

• Sugar and Water

• Salt and Ethanol

• Oil and Ethanol

• Juice Crystals and Orange Juice

Particles (atoms and molecules) will...

• ...eventually reach absolute zero.

• ...touch when heated.

• ...never stop moving.

• ...sublimate.