Colligative Properties

When CH₃OH is dissolved in water, how many particles are in solution for each unit?

• 1

• 3

• 4

• 5

• 6

Tags

NGSS.MS-PS1-1

When KCl (potassium chloride) is dissolved in water, how many particles are in solution for each unit?

• 1

• 2

• 3

• 4

• 6

Which technique could increase or speed up the rate of dissolving?

• Allowing the mixture to settle
• Stirring the mixture
• Adding more powder
• Adding more water

Tags

NGSS.MS-PS3-4

Colligative properties depend on the _________ of the solute but not the __________ of the solute.

•  concentration; identity
• identity; concentration
• reactivity; nature
• nature; reactivity

When the temperature of matter increases the particles...

• speed up and move closer
• speed up and move farther apart
• slow down and move closer together
• slow down and move farther apart

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The weaker the intermolecular forces of a substance the _____________ the boiling point

• higher

• lower

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is happening at the boiling point?

• liquid to gas
• gas to liquid
• solid to liquid
• liquid to solid

Tags

NGSS.MS-PS1-4

When a solid reaches the temperatures of its ___, it can become a liquid.

• melting point
• freezing point
• boiling point
• density

Tags

NGSS.MS-PS1-4

A substance has a melting point of -125 ^oC and a boiling point of -35 ^oC. What state is it at 15^oC?

• Solid

• Liquid

• Gas

Tags

NGSS.MS-PS1-4

Freezing point

• The classification of matter as a solid, a liquid, or a gas

• Physical change in matter from a gas to a liquid

• The temperature at which a substance changes states from a solid to a liquid

• The temperature at which a substance changes from a liquid to a solid

Tags

NGSS.MS-PS1-4