Solutions

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

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

Tags

NGSS.HS-PS1-5

NGSS.HS-PS1-6

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

A solution that is considered dilute would be....

• Dark in color
• Have a strong scent
• Have a large amount of solute
• Have a small amount of solute

Tags

NGSS.HS-PS1-5

air is a 

• compound
• element
• heterogeneous mixture
• solution

salt water is a 

• compound
• element
• heterogeneous mixture
• solution

Another name for a homogeneous mixture is 

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

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.HS-PS1-5

Which of the following is not a way to increase the rate of dissolving

• evaporation
• stirring 
• increasing temperature
• using a smaller particle size

Tags

NGSS.HS-PS1-5

Molarity is.......

• milliters per moles

• solvent per solution

• moles of solvent per liters of solute

• moles of solute per liters of solution

Tags

NGSS.HS-PS1-5