About This Chapter
Chemical Bonds and Reactions - Chapter Summary
Refresh your memory about the four types of chemical bonds - covalent, ionic, polar covalent and hydrogen - through this online chapter on chemical bonds and reactions. This series of video lessons also can teach you about chemical reactions and balancing chemical equations. Other topics addressed in this chapter include the following:
- Mass-to-mass stoichiometric calculations
- Mole-to-mole ratios and calculations of a chemical equation
- Limiting reactants and calculating excess reactants
- Calculating reaction yield and percentage yield from a limiting reactant
- The kinetic molecular theory: properties of solids and liquids
- The kinetic molecular theory: properties of gases
Our instructors are professionals with academic backgrounds and practical experience in the subjects they teach. They developed these video lessons on chemical bonds and reactions to be brief yet both thorough and engaging. If you don't feel you need to watch an entire lesson but instead want to focus on a specific topic, you can utilize the clickable timetable links on each video to single out a key point.
For learners who gain more from reading than watching a video, each lesson includes a transcript that you can peruse if you need further review of major terms or concepts. The lessons also feature short self-assessment quizzes that can help you identify areas where you'd benefit from additional study.
1. Chemical Bonds I: Covalent
Mom always said that sharing is caring. This lesson will explore how electrons affect the chemical reactivity of atoms and specifically the merits of sharing electrons.
2. Chemical Bonds II: Ionic
Did you know that the scientific name for table salt is sodium chloride? Find out how sodium and chlorine atoms come together to form your favorite seasoning.
3. Chemical Bonds III: Polar Covalent
Are you confused about how you can tell what kind of bond two atoms will form? This lesson will help you understand the difference between polar and nonpolar covalent bonds as well as how to predict how two atoms will interact.
4. Chemical Bonds IV: Hydrogen
This lesson defines and discusses important concepts behind hydrogen bonding. You'll learn when and why these bonds occur and which atoms are often involved.
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. Mass-to-Mass Stoichiometric Calculations
Learn how to set up and make mole to mass, mass to mole and mass to mass stoichiometric calculations. Learn how the ratios of moles helps you compare and make calculations. Learn how to relate mole ratios to molar mass.
7. Mole-to-Mole Ratios and Calculations of a Chemical Equation
Learn what a mole ratio is and how to determine and write the mole ratio relating two substances in a chemical equation in this video lesson. Also, learn to make mole-to-mole calculations and solve problems involving moles of substances.
8. Limiting Reactants & Calculating Excess Reactants
In this lesson, you'll learn about limiting and excess reactants and how to determine which reactant is the limiting one in a chemical reaction when given the amount of each reactant, and also how to calculate the amount of product produced.
9. Calculating Reaction Yield and Percentage Yield from a Limiting Reactant
Learn what the theoretical yield, actual yield and percent yield are. Given the limiting reactant, learn how to calculate the theoretical reaction yield, which is also known as the ideal reaction yield and percentage yield.
10. 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.
11. The Kinetic Molecular Theory: Properties of Gases
What makes a gas ideal? What types of characteristics do ideal gases have? In this lesson, we will discuss the many characteristics of gases and how knowing the microscopic properties of gas particles will help you understand the macroscopic properties of a gas.
12. Nitrogenous Bases: Hydrogen Bonding, Overview
Adenine, cytosine, thymine, guanine, and uracil! They are the 'rungs' in the DNA ladder. Learn how these ring-shaped molecules spell out your genes and pair with each other in this lesson.
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Other chapters within the ILTS Science - Physics (116): Test Practice and Study Guide course
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- Cell Structure
- Heredity and Evolution
- Characteristics and Life Functions of Organisms
- Organisms and the Environment
- Fundamentals of Thermodynamics
- The Atom & Matter
- Trends of the Periodic Table
- Nuclear Processes
- Waves Overview
- Magnetism & Electricity
- Land, Water, and Atmospheric Systems
- Weather and Storms
- The Universe
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