About This Chapter
How It Works:
- Identify the lessons in the Holt Science Spectrum - Physical Science Solutions chapter with which you need help.
- Find the corresponding video lessons with this companion course chapter.
- Watch fun videos that cover the solutions topics you need to learn or review.
- Complete the quizzes to test your understanding.
- If you need additional help, rewatch the videos until you've mastered the material or submit a question for one of our instructors.
Students will learn:
- Heterogeneous and homogeneous mixtures
- Emulsions in the human body
- Solutions, solvents and solutes
- Polar molecules
- Water properties
- Nonpolar covalent bonds
- The rate of dissolution factors
- How to use solubility curves
- Molarity and molality
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1. Heterogeneous Mixture: Definition & Examples
You come into contact with mixtures every day. Most of the foods we eat and drink are some form of mixtures. In this lesson, you will learn about heterogeneous mixtures and the types of heterogeneous mixtures recognized by scientists.
2. Homogeneous Mixture: Definition & Examples
We use many types of mixtures in everyday life. In this lesson, you will learn about a type of mixture known as a homogeneous mixture so you will be able to identify them in the future.
3. Solutions, Solutes, and Solvents
Oh no! Your friend Ben just drank chili oil on a dare, and now his mouth is burning. Should he drink the ice water or vegetable oil to cool his mouth? Quick. Watch this lesson if you aren't sure.
4. Polar Molecule: Definition & Examples
In this lesson, you will learn about polar molecules. A few polar molecules will be discussed to describe the process of determining polarity. Finally, a test of your knowledge will be performed.
5. Properties of Water
Why does ice float? Why can water rise on its own against gravity in a small tube? Find out how these mysterious properties of water can be explained by hydrogen bonds.
6. Nonpolar Covalent Bond: Definition & Examples
When two atoms come together to share or take electrons, they do so in order to achieve a more stable, low energy state. Sometimes two atoms of the same element bond by sharing outer electrons. This is called nonpolar covalent bonding.
7. The Rate of Dissolution: Factors and Definition
Learn what dissolution is and the factors that affect the rate of dissolution, such as temperature, surface area, polarity and pressure. Learn what miscible and immiscible mean in regards to liquids.
8. Solubility and Solubility Curves
Learn what solubility is as well as the definitions of 'saturated,' 'unsaturated' and 'supersaturated.' Learn how to determine the solubility of a substance in water by using a solubility curve. Discover the effects of pressure and temperature on the solubility of liquids, solids and gases.
9. Calculating Molarity and Molality Concentration
Learn the abbreviations and meaning of molarity and molality. Then apply what you have learned by going over some sample calculations with given concentrations.
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Other chapters within the Holt Science Spectrum - Physical Science: Online Textbook Help course
- Holt Physical Science Chapter 1: Introduction to Science
- Holt Physical Science Chapter 2: Matter
- Holt Physical Science Chapter 3: States of Matter & Energy
- Holt Physical Science Chapter 4: Atoms & the Periodic Table
- Holt Physical Science Chapter 5: The Structure of Matter
- Holt Physical Science Chapter 6: Chemical Reactions
- Holt Physical Science Chapter 8: Acids, Bases & Salts
- Holt Physical Science Chapter 9: Nuclear Changes
- Holt Physical Science Chapter 10: Motion
- Holt Physical Science Chapter 11: Forces
- Holt Physical Science Chapter 12: Work & Energy
- Holt Physical Science Chapter 13: Heat & Temperature
- Holt Physical Science Chapter 14: Waves
- Holt Physical Science Chapter 15: Sound & Light
- Holt Physical Science Chapter 16: Electricity
- Holt Physical Science Chapter 17: Magnetism
- Holt Physical Science Chapter 18: Communication Technology
- Holt Physical Science Chapter 19: The Solar System
- Holt Physical Science Chapter 20: The Universe
- Holt Physical Science Chapter 21: Planet Earth
- Holt Physical Science Chapter 22: The Atmosphere
- Holt Physical Science Chapter 23: Using Natural Resources