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

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

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

How many grams of K₂Cr₂O₇, are soluble in 100 g of water at 95 ºC?

• 83 grams
• 75 grams
• 40 grams
• 12 grams

When a certain amount of solvent cannot hold any more solute it is called a ________ solution.

• Diluted
• Saturated

How does a solution become supersaturated?

• dissolve lots of solvent 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. 

When 20 grams of potassium chlorate, KClO₃, is dissolved in 100 grams of water at 80 ºC, the solution can be correctly described as:

• supersaturated
• saturated
• unsaturated