Solutions and Solubility

The substance being dissolved.

• Solute
• Solvent
• Solution
• Concentration

The substance that dissolves the solute.

• Solution
• Solute
• Concentration
• Solvent

When you put a Kool-Aid packet in a pitcher of water, which one is the solvent?

• Kool-aid
• Water

Stirring the solution...

• Slows the process down
• Doesn't change the process
• Speeds up the process
• None of the above

Tags

NGSS.MS-PS1-4

A solution is a ___________ mixture of two or more substances evenly distributed through out a single phase.

• homogeneous 
• heterogeneous 
• solvent 
• suspension 

why does increasing the temperature of the solvent speed up the dissolving process? 

• it brings fresh solvent into contact with more sloute 
• it brings more sloute to the solvent 
• more solvent molecules collide with the sloute 
• it is hot so it dissolves faster 

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

_{Polar solvents dissolve polar solutes, so which of the following  is an example?}

• hexane + grease 
• it brings more solute to the solvent 

The solution salt needs ___ grams of solute dissolved in 100ml of water at 60⁰ C to make the solution supersaturated 

• 200 grams 
• 350 grams
• 290 grams
• 300 grams

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Oil molecules are nonpolar. What kind of solvent is required to remove an oil stain?

• saturated
• unsaturated
• polar
• nonpolar

If an electrical current can run through a solution, it is said to contain

• magic
• nonelectrolytes
• electricity
• electrolytes