Chapter 12 Concepts

When two liquids mix, they are said to be....

• insoluble
• miscible
• soluble
• immiscible

Solubility refers to the ____ of solute that can dissolve in a certain volume or mass of solvent, at a certain temperature.

• Volume
• Proportion
• Mass
• Particles

When 50 grams of KCl is completely dissolved in 100 grams of water at 50 ºC, the solution can be correctly described as:

• supersaturated

• unsaturated

• saturated

Sugar water let's light pass through, and is a homogeneous mixture

• solution
• suspension
• colloid

Tags

NGSS.MS-PS1-2

Sand floating in water, but most of the sand is settled at the bottom this an example of which type of mixture?

• A solution
• A colloid
• A suspension
• A compound

Which of the following would result in being able to dissolve a greater amount of gas in a
solution?

• Heat the gas and solution
• Decrease the pressure of the solution
• Make the gas an electrolyte
• Cool the gas and solution

Which of the following compounds is immiscible in water?

• NaI (ionic)

• CH4 (non polar covalent)

• CH3OH (polar covalent)

• FeCl2 (ionic)

The three steps of dissolving that involve energy are
1. Separating Solute- Endothermic
2. Separating Solvent- Endothermic
3. Attraction of Solute and Solvent- Exothermic

• True
• False

When solute-solvent attraction is greater than the energy required to break apart the solute and to break apart the solvent, the solution will be

• Endothermic,
  releases heat
• Endothermic,
  absorbs heat
• Exothermic,
  releases heat
• Exothermic,
  absorbs heat

How does a solution become supersaturated?

• dissolve lots of solute in it.
• dissolve a little solute in it. 
• dissolve more solute than you should be able to. 
• dissolve a super amount of solvent in it.