About This Chapter
Chemical Reactions, Acids & Bases - Chapter Summary
The lessons in this chapter provide an overview of chemical reactions, including their properties, components and equations. To help prepare for you for chemistry-related questions on the HiSET Science exam, the videos include the following topics:
- Properties of water
- Solutions and solvents
- Acids and bases
- Balancing chemical reactions
- Common reactions
- Energy change
- Redox reactions
The short video lessons in this chapter are taught by experienced instructors and include illustrations and examples to help make learning fun and easy. There are also short multiple-choice quizzes and a practice exam to help you test what you have learned.
HiSET Science Objectives
The HiSET is a high school equivalency exam available in about 12 states. It includes tests in five subject matters, including science. The Science exam consists of 50 multiple-choice questions to be completed within an 80-minute time frame. Approximately 29% of the questions are on physical science topics, which include chemistry. The video lessons in this unit can prepare you to answer the chemistry questions related to chemical reactions. Many of the questions in this section focus on scientific investigations or experiments and their results.
1. 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.
2. 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.
3. Osmosis, Diffusion and Saturation
The cells in our bodies are in constant flux through the processes of osmosis and diffusion. Learn about how saturation levels force change, and why we're lucky they do.
4. 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.
5. 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.
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. 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. 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.
9. Neutralization Reaction: Definition, Equation & Examples
Have you ever had a burning feeling in your stomach after eating too much spicy food? This is due to a buildup of stomach acid and can be relieved by taking an antacid. This causes a neutralization reaction, which is what we will cover in this lesson.
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Other chapters within the HiSET Science: Prep and Practice course
- HiSET: Atoms, Elements & the Periodic Table
- HiSET: Inorganic Chemistry
- HiSET: Cell Biology
- HiSET: The Cell Cycle & Cell Division
- HiSET: Biomolecules
- HiSET: Enzymatic Biochemistry
- HiSET: Cellular Respiration & Photosynthesis
- HiSET: Compounds & Chemical Bonds
- HiSET: Classification of Organisms
- HiSET: Genetics & Evolution
- HiSET: Genetic Engineering Basics
- HiSET: Animal Reproduction & Development
- HiSET: Human Reproductive Anatomy & Physiology
- HiSET: Human Body Systems
- HiSET: Nervous, Immune & Endocrine Systems
- HiSET: Ecology & Ecosystems
- HiSET: Animal Behavior
- HiSET: Mechanics of Motion
- HiSET: Principles of Light
- HiSET: Energy & Heat
- HiSET: Electricity & Magnetism
- HiSET: Earth Science & Geologic Time
- HiSET: Earth's Spheres & Internal Structure
- HiSET: Weathering & Erosion
- HiSET: Minerals & Rocks
- HiSET: Plate Tectonics & Continental Drift
- HiSET: The Atmosphere
- HiSET: Astronomy