Understanding Aqueous Solutions and Dissolution

What is the term for the substance that dissolves in a solution?

• Solvent

• Solute

• Mixture

• Compound

Tags

TEKS.SCI.7.6D

Which of the following is an example of a solvent in an aqueous solution?

• Sugar

• Salt

• Water

• Sand

Tags

TEKS.SCI.7.6D

What does the term "dilution" refer to in a solution?

• Increasing the amount of solute

• Decreasing the amount of solvent

• Adding more solvent to decrease concentration

• Removing the solute

Tags

TEKS.SCI.7.6D

Which factor does NOT affect the rate of dissolution of a solid solute in water?

• Temperature

• Surface area

• Agitation

• Color of the solute

Tags

TEKS.SCI.7.6E

What happens to the rate of dissolution when the temperature of the solvent increases?

• It decreases

• It stays the same

• It increases

• It stops completely

Tags

TEKS.SCI.7.6E

If you stir a mixture of salt and water, what effect does this have on the rate at which the salt dissolves?

• It decreases the rate

• It has no effect

• It increases the rate

• It makes the solution freeze

Tags

TEKS.SCI.7.6E

Match each description to the correct type of solution.

• Pure solvent

• A solution with no solute

• Concentrated solution

• A solution with a large amount of solute

• Solvent without solute

• A solution with a small amount of solute

• Dilute solution

• A solution with only solvent

Tags

TEKS.SCI.7.6D

A student adds more water to a salty solution. What happens to the concentration of salt in the solution?

• It increases

• It decreases

• It stays the same

• It becomes zero

Tags

TEKS.SCI.7.6D

If you have two solutions, one with 10 grams of sugar in 100 mL of water and another with 20 grams of sugar in 100 mL of water, which is more concentrated?

• The first solution

• The second solution

• Both are equally concentrated

• Neither is concentrated

Tags

TEKS.SCI.7.6D

Which action would make a sugar cube dissolve faster in water?

• Using cold water

• Using a whole sugar cube

• Stirring the water

• Leaving the water still

Tags

TEKS.SCI.7.6E