About This Chapter
MTLE Middle Level Science: Understanding Chemical Reactions, Thermodynamics & Kinetics- Chapter Summary
Start preparing for the MTLE Middle Level Science exam. By using the resources in this chapter such as the video lessons, you can make sure you are not surprised by any information on the chemical reactions, thermodynamics and kinetics portion of the exam. This chapter addresses the following topics:
- Chemical bonds
- Acids vs. bases
- Chemical, spontaneous and redox reactions
- Writing and balancing chemical reactions
- Enthalpy and entropy
- Catalysts and their effects on reaction rates
- The formation of new products as a result of chemical reactions
The video lessons are taught by instructors who are extremely knowledgeable on the various topics found on this portion of the exam. If at any point during the chapter you are stuck and need more help, you can ask our instructors questions and they can guide you as you master the material.
MTLE Middle Level Science: Understanding Chemical Reactions, Thermodynamics & Kinetics Objectives
If you have a special interest in teaching the subject of science to children in grades 5-8 in Minnesota, you will need to take and pass the MTLE Middle Level Science exam. When you take this exam, you will be given two subtests. It will take about an hour to complete Subtest 2, which has 50 multiple-choice questions. Within Subtest 2, you will be tested on physical science and in that area you will find the information on chemical reactions, thermodynamics and kinetics.
1. Chemical Bonds: Ionic vs. Covalent
Atoms make up everything on Earth, and chemical bonds are what hold those atoms together. In this lesson, we'll discuss two very important types of chemical bonds: covalent and ionic.
2. Acids and Bases
Have you ever wondered how we measure the acidity of liquids? Check out this lesson to see how acids and bases are measured on a pH scale and how they relate to neutral solutions, such as water.
3. Chemical Reactions and Balancing Chemical Equations
In this lesson, you'll learn how to balance a chemical reaction equation using the conservation of matter law. You'll also learn how to write both word and formula equations, what the subscripts after a letter mean and what the numbers in front of compounds mean.
4. 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.
5. Redox (Oxidation-Reduction) Reactions: Definitions and Examples
This short video will explain oxidation-reduction reactions, or redox reactions for short. The focus is on how electrons are transferred during redox reactions. Learn some neat mnemonic devices to help you remember when an atom is oxidizing or reducing.
6. Basic Properties of Chemical Reactions
Learn how about the various components of a chemical reaction, and how those components function. Use this lesson to understand the basic properties of different kinds of chemical reactions.
7. The Laws of Thermodynamics
Learn about the first and second laws of thermodynamics. Find out how energy is generated, how it converts from one form to another, and what happens to energy in a closed system.
8. The Relationship Between Enthalpy (H), Free Energy (G) and Entropy (S)
In this video lesson, we'll study free energy (G) and its relationship to enthalpy, entropy and temperature. You'll also learn why free energy (G) is the single most useful criterion for predicting the spontaneity and direction of a chemical reaction.
9. Spontaneous Reaction: Definition & Examples
Ordinary, everyday things, such as salt dissolving in water, ice melting, and fruit ripening, are examples of spontaneous reactions that we normally encounter. What are spontaneous reactions? We will cover the topic in this lesson.
10. Rate of a Chemical Reaction: Modifying Factors
Why are some reactions much faster than others? Is it possible to change how fast a reaction occurs? In this lesson, you will learn what the rate of a chemical reaction is. You will also discover how factors such as temperature, concentration, surface area, and catalysts impact reaction rates.
11. How Chemical Reactions Form New Products
After watching this video, you will be able to explain what a chemical reaction is and how the products can have completely different properties to the reactants. A short quiz will follow.
12. Effect of Catalysts on Rates of Reaction
In this video lesson, we will learn how catalysts speed up chemical reactions. We'll also discuss how catalysts are used in industry and consider the catalysts in our own bodies. A short quiz will test your new knowledge.
13. Equilibrium: Chemical and Dynamic
Learn the definition of chemical equilibrium and how it is dynamic. Discover what the equilibrium constant is and how it shows whether the reaction favors the reactants or products. Learn how chemists designate equilibrium in an equation and how they show the difference in reaction rate.
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Other chapters within the MTLE Middle Level Science: Practice & Study Guide course
- MTLE Middle Level Science: Principles of Scientific Inquiry
- MTLE Middle Level Science: Scientific Methods & Tools
- MTLE Middle Level Science: Connecting Science & Other Subjects
- MTLE Middle Level Science: Developing Science Reading Skills
- MTLE Middle Level Science: Reading Comprehension & Analysis
- MTLE Middle Level Science: Components & Evolution of Earth
- MTLE Middle Level Science: Matter & Energy
- MTLE Middle Level Science: Earth's Structure & Weather Cycles
- MTLE Middle Level Science: Earth, The Solar System & The Universe
- MTLE Middle Level Science: Human Interactions with Earth Systems
- MTLE Middle Level Science: Structures & Functions of Living Organisms
- MTLE Middle Level Science: Molecular & Cellular Life Processes
- MTLE Middle Level Science: Evolution of Life
- MTLE Middle Level Science: Interdependence, Energy Flow & Ecosystems
- MTLE Middle Level Science: Linear Motion & Forces
- MTLE Middle Level Science: Vibrations, Waves & Light
- MTLE Middle Level Science: Electricity & Magnetism
- MTLE Middle Level Science: Properties & Structure of Matter
- MTLE Middle Level Science Flashcards