Solutions, dissolving and Saturated solutions

What is a substance that is dissolved in another substance? 

• solution
• solute
• solvent
• compound

What is a solvent?

• The substance that does the dissolving in a solution.
• The substance that is being dissolved in a solution.
• The mixing of different substances.
• The process in which neutral molecules lose or gain electrons

In the above picture, a powder is about to be poured into the liquid. Which of the following should be done to make this powder dissolve faster?

• stir the powder in the liquid
• freeze the mixture
• add more powder to the liquid
• store the mixture in a dark place

Tags

NGSS.HS-PS1-5

air is a 

• compound
• element
• heterogeneous mixture
• solution

Another name for a homogeneous mixture is 

• an element.
• a solution.
• a compound.

Kool-Aid - Powder, sugar, and water
Identify the solvent 

• water
• powder
• sugar
• powder and sugar

When Koolaid mix is light colored and tastes watery it is a _______ solution.

• saturated 
• diluted

When a Koolaid mix in water is dark in color and very sweet it is a __________ solution.

• concentrated 
• Diluted

To make a solute dissolve more quickly i n a solvent which would you do?

• Put it in cold water and stir it
• Put it in warm water and stir it

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The concentration of a mixture can be increased in which of the following ways?

• Heating the mixture
• Adding more water “solvent”
• Adding more powder “solute”
• Stirring the mixture