About This Chapter
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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Other chapters within the MCAS - Science & Technology-Engineering - Chemistry: Test Prep & Practice course
- MCAS ST&E Chemistry: Atomic Structure
- MCAS ST&E Chemistry: Nuclear Chemistry
- MCAS ST&E Chemistry: The Periodic Table
- MCAS ST&E Chemistry: Types of Chemical Bonds
- MCAS ST&E Chemistry: Chemical Compounds & Bonds
- MCAS ST&E Chemistry: Stoichiometry & Chemical Equations
- MCAS ST&E Chemistry: Properties & Laws of Gases
- MCAS ST&E Chemistry: Thermodynamics
- MCAS ST&E Chemistry: Solutions
- MCAS ST&E Chemistry: Chemical Reactions
- MCAS ST&E Chemistry: Chemical Equilibrium
- MCAS ST&E Chemistry: Acids, Bases, Oxidation & Reduction
- MCAS ST&E Chemistry: Scientific Method & Inquiry
- MCAS ST&E Chemistry: Laboratory Equipment & Techniques
- MCAS ST&E Chemistry: Mathematics Principles in Chemistry
- MCAS - Science & Technology-Engineering - Chemistry Flashcards