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Ch 1: MCAS ST&E Chemistry: Matter & Energy

About This Chapter

As part of your preparations for the MCAS ST&E Chemistry test, take a look at this chapter on matter and energy. You can view our video lessons on any Wi-Fi streaming device, so you can study at home, at school, and everywhere in between.

MCAS ST&E Chemistry: Matter & Energy - Chapter Summary

You can use this chapter to make sure that you are prepared for test questions on matter and energy on the MCAS ST&E Chemistry test. As you work through the lessons, you will become reacquainted with the following information:

  • The chemical characteristics and physical properties of matter
  • How matter physically changes compared to the states of matter
  • The six main phase changes
  • Combining compounds and elements to create new mixtures
  • The differences between homogeneous and heterogeneous mixtures
  • Changes in energy and the common reactions of chemicals
  • The Kinetic Molecular Theory
  • Phase diagrams and properties of heating curves in relation to phase changes

One of the best ways to prepare for the MCAS ST&E Chemistry test includes using these study materials that were built specifically with this test in mind. Each of our test prep chapters, such as this one on matter and energy, provide a full review of the most pertinent information that you will need to remember for the test. Each video lesson focuses on a single aspect of the chapter, and most lessons can be viewed within 5-8 minutes. As an additional resource to our study materials, you can also ask our experts questions about this or any other chapter via email.

10 Lessons in Chapter 1: MCAS ST&E Chemistry: Matter & Energy
Test your knowledge with a 30-question chapter practice test
Matter: Physical and Chemical Properties

1. Matter: Physical and Chemical Properties

How are substances identified? There are two major ways we can describe a substance: physical properties and chemical properties. Learn about how chemists use properties to classify matter as either a mixture or a pure substance.

States of Matter and Chemical Versus Physical Changes to Matter

2. States of Matter and Chemical Versus Physical Changes to Matter

The world around us is constantly changing. Chemists put those changes into two main categories: physical changes and chemical changes. This lesson will define and provide examples of each.

Phase Change: Evaporation, Condensation, Freezing, Melting, Sublimation & Deposition

3. Phase Change: Evaporation, Condensation, Freezing, Melting, Sublimation & Deposition

Substances on Earth can exist in one of four phases, but mostly, they exist in one of three: solid, liquid or gas. Learn the six changes of phase: freezing, melting, condensation, vaporization, sublimation and deposition.

Creating Mixtures by Combining Elements & Compounds

4. Creating Mixtures by Combining Elements & Compounds

Do you really know what's in your tap water? It's not just water - it's a mixture of many different things. In fact, most things are mixtures of different elements and compounds that are physically joined together.

Heterogeneous Mixture: Definition & Examples

5. 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.

Homogeneous Mixture: Definition & Examples

6. 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.

Common Chemical Reactions and Energy Change

7. Common Chemical Reactions and Energy Change

This lesson covers the five common types of chemical reactions: combination, decomposition, single-replacement, double-replacement, and combustion. You will learn how to predict what kind of chemical reaction will occur. You'll also explore how matter is conserved, but energy can change.

The Kinetic Molecular Theory: Properties of Solids and Liquids

8. The Kinetic Molecular Theory: Properties of Solids and Liquids

This lesson explores the kinetic molecular theory and how it pertains to the properties of solids and liquids. You'll learn the properties of solids and liquids, discover the types of intermolecular attractions that occur between them and gain an understanding how phase changes happen.

Phase Diagrams: Critical Point, Triple Point and Phase Equilibrium Boundaries

9. Phase Diagrams: Critical Point, Triple Point and Phase Equilibrium Boundaries

Learn what a phase diagram is and how to interpret phase diagrams. Discover how to use a phase diagram to locate the phase equilibrium boundaries. Also, learn what a triple point and critical point are and how to locate them on a phase diagram.

Phase Changes and Heating Curves

10. Phase Changes and Heating Curves

Learn the phases - gas, liquid, solid and plasma. Learn what a phase diagram is and what terms describe the movement between phases: melting, sublimating, freezing, vaporization, condensation, and deposition. Discover why heating curves have plateaus, what a phase transition is, and what happens during this transition.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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