Solutions Review

What is a solution in science?

• A type of solid

• A mixture where substances are evenly distributed

• A type of gas

• A single element

Which of the following is an example of a solution?

• Sand and water

• Oil and water

• Salt dissolved in water

• Rocks in a jar

What is the difference between a concentrated and a diluted solution?

• Concentrated solutions have more solute, while diluted solutions have less solute

• Concentrated solutions are always liquids, while diluted solutions are always solids

• Concentrated solutions are colder, while diluted solutions are warmer

• Concentrated solutions are always colored, while diluted solutions are always clear

How can you increase the concentration of a solution?

• Add more solvent

• Add more solute

• Heat the solution

• Cool the solution

Which of the following best describes a diluted solution?

• A solution with a large amount of solute

• A solution with a small amount of solute

• A solution with no solute

• A solution with equal parts solute and solvent

If you have a solution with 10 grams of salt in 100 mL of water, what is the concentration in grams per mL?

• 0.1 grams/mL

• 1 gram/mL

• 10 grams/mL

• 0.01 grams/mL

What happens to the concentration of a solution if you add more water to it?

• The concentration increases

• The concentration decreases

• The concentration stays the same

• The concentration doubles

Which of the following is NOT a type of solution?

• Solid in liquid

• Gas in liquid

• Liquid in gas

• Solid in solid

Why is it important to measure the concentration of a solution?

• To know the color of the solution

• To determine the amount of solute in the solution

• To find out the temperature of the solution

• To see if the solution is a solid

If you have a solution with a concentration of 5 grams per 100 mL, how much solute is in 200 mL of this solution?

• 5 grams

• 10 grams

• 15 grams

• 20 grams