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Homework exercises on Mixtures and Solutions for a Physical Science course. Also refer to Chemistry, compounds, molecules, elements, ions, education, distance learning, Ron Kurtus, School for Champions. Copyright © Restrictions

Mixtures and Solutions - Homework Answers

After you have completed the Mixtures and Solutions Homework, you can refer to these answers. Although it is better to have known the answer from your reading, the process of writing the correct answer on your homework sheet will help you remember the concepts.

1. What is a chemical compound?

The chemical combination of two or more different atoms or molecules..

2. What is the main trait of a simple mixture of particles?

It can be separated into its parts.

3. Give an example of a simple mixture of particles:

Gravel, muddy water.

4. What is the main trait of a homogeneous mixture of particles?

.Will not separate for a long time, if at all.

5. Give an example of a homogeneous mixture of particles:

Milk, paint.

6. What is the definition of a solution?

Mixture of two different type of ions or molecules.

7. What is an example of a homogeneous mixture of molecules?

Water and alcohol.

8. If the concentration of a carbon dioxide is 10% with respect to air, and there was 50 grams of air, who much carbon dioxide would there be?

5 grams.

9. If the relative humidity is 90%, does that mean there is only 10% of air left? Why or why not?

No. It means that the air has absorbed 90% of the possible water in it.

10. Why do you sweat on a hot, humid day?

You sweat because of the heat, but the humidity prevents it from evaporating from your skin.

11. What happens to the sodium and chlorine when salt dissolves in water?

The become ions mixed in the water.

12. Does salt water conduct electricity? Why or why not?

Yes, because the ions allow conduction of electricity.

13. What happens when salt water reaches its saturation point?

The undissolved salt starts to collect on the bottom.

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