Solutions 2024 Lesson

Multiple Choice

What are the phases of matter?

• solid

  liquid

  gas

  plasma

• solid

  water

  rock

  electricity

• solid

  liquid

  gas

  magma

• solid

  liquid

  mixture

  pure substance

Multiple Choice

An elements is an example of a _________.

• pure substance

• mixture

• homogeneous mixture

• heterogeneous mixture

Multiple Choice

What is a solute?

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

Multiple Choice

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

Multiple Choice

__________ are made up of solutes and solvents.

• Solutions
• Suspension
• Colloid

Multiple Choice

Water is a universal solvent

• true
• false

Multiple Choice

Combination of two or more pure substances that are not chemically combined

• compound          
• atom
• mixture 
• element

Multiple Choice

Type of mixture that has the SAME COMPOSITION in every part.

• Homogenous

• Heterogeneous

Multiple Choice

What will allow more solute to be dissolved in a solvent.

• adding more solute
• stiring
• cooling solution
• heat

Multiple Choice

Rey is making soup. He will dissolve cubes of instant soup mix in hot water.
How can Rey make the soup cubes dissolve more quickly in the water? 

• use less water
• use more water
• add ice cubes to cool the water
• break the soup cubes into smaller pieces

Multiple Choice

Darla put some sugar in a pitcher of iced tea.
 

Why is Darla stirring the iced tea? 

• Stirring makes the iced tea colder
• Stirring makes the sugar dissolve more quickly
• Stirring keeps the sugar from forming into larger pieces
• D - The sugar will not dissolve unless she stirs the iced tea

Multiple Choice

Three 10 g samples of sugar are represented below.

Sample A dissolves in water more slowly than sample B.

Sample B dissolves more slowly than sample C.

Which of the following best explains why sample A dissolves more slowly than the other two?

• It has the most volume.

• It has the smallest surface area.

• It has the largest number of sugar molecules.

• It has the fewest bonds between sugar modules.

Multiple Choice

Define solubility

• how much pressure is in an object has
• Surface Area per Temperature
• how much solute can dissolve in a solvent
• it is a made up word

Multiple Choice

The amount of solute actually dissolved in a given amount of solvent.

• dilution
• concentration
• saturated solution
• supersaturated mixture

Multiple Choice

What does it mean to dilute a solution?

• lower the concentration of solute per solvent
• increase the concentration of solute per solvent

Multiple Choice

Which of the following best describes a supersaturated solution?

• a solution that contains the maximum amount of solute that is capable of being dissolved

• a solution that contains less than the maximum amount of solute that is capable of being dissolved.

• a solution that contains more than the maximum amount of solute that is capable of being dissolved.

• none of the above

Multiple Choice

How does a solution become supersaturated?

• Vigorous stirring to dissolve more solute than usual.

• Heat the solution to increase the solute then let it cool.

• Add more solvent to lower the concentration.

• Keep pouring solute in the solvent until it goes in.

Multiple Choice

What do you call a solution that contains less than the maximum amount of solute that is capable of being dissolved?

• unsaturated solution

• saturated solution

• supersaturated solution

• insoluble solution

Multiple Choice

When the solution equilibrium point is reached and no more solute will dissolve, the solution is said to be _________.

• unsaturated

• saturated

• supersaturated

Multiple Choice

When a solvent contains as much of a solute as it can hold, it is described as being

• saturated

• unsaturated

• supersaturated

• miscible

Multiple Choice

Two liquids that can be mixed together but separate shortly after are:

• immiscible

• insoluble

• miscible

• soluble

Multiple Choice

Oil does not dissolve in water. Which term would best describe a mixture of oil and water?

• miscible

• immiscible

• saturated

• unsaturated

Multiple Choice

If you increase the temperature of a solution you ________________the solubility of most substances.

• increase

• decrease

• don't alter

Multiple Choice

Solubility of gases are greater in ___________________ water.

• cold

• warm

• hot

• room temperature

Multiple Choice

Identify if the following solution would be saturated, unsaturated, or supersaturated: 103 g KBr at 70'C.

• Unsaturated
• Saturated
• Supersaturated

Multiple Choice

Identify how many grams of KNO3 is required to make a saturated solution at 40'C.

• 50 g

• 45 g

• 60 g

• 33 g

Multiple Choice

What type of a solution is 60g NaNO₃ at 40ºC in 100g H₂O?

• Saturated

• Unsaturated

• Supersaturated

Multiple Choice

What type of a solution is 25g NaCl at 70ºC in 100g H₂O?

• Saturated

• Unsaturated

• Supersaturated

Multiple Choice

What type of a solution is 55g KCl at 70ºC in 100g H₂O?

• Saturated

• Unsaturated

• Supersaturated