Copyright

Ch 6: Praxis General Science: Bonding & Structure

About This Chapter

Watch these lessons to improve your knowledge of chemical bonding and structure. The fun lessons and accompanying quizzes can help you prepare for related questions on the Praxis General Science exam.

Praxis General Science: Bonding & Structure - Chapter Summary

This chapter is composed of a series of short lessons that are taught by our expert instructors. They'll help you improve your understanding of chemical bonds and structures. Following your exploration of these lessons, you should be ready to do the following on the Praxis General Science exam:

  • Explain Lewis structures of atoms and the octet rule
  • Define a chemical formula
  • Examine chemical nomenclature and notation
  • Compare ionic versus covalent bonds
  • Work with Avogadro's number
  • Give examples of molar mass
  • Calculate percent composition and empirical formulas

Reinforce your understanding of the material by reading the lesson transcripts. They'll present you with written overviews of the videos and give you a way to study the key vocabulary. The quizzes provide you with a way to test your understanding of the lessons and find topics you don't understand. Video tags allow you to study specific parts of the lessons while skipping over the topics you already know well.

7 Lessons in Chapter 6: Praxis General Science: Bonding & Structure
Test your knowledge with a 30-question chapter practice test
What is a Chemical Formula? - Definition, Types & Examples

1. What is a Chemical Formula? - Definition, Types & Examples

Chemical formulas provide a lot of information about chemical substances, such as how many and what atoms they are made of, as well as the way the atoms are arranged. In this lesson, we'll discuss the different types of chemical formulas.

Chemical Nomenclature & Notation

2. Chemical Nomenclature & Notation

Subscripts, superscripts, symbols and coefficients can make your head spin. This lesson will straighten everything out for you so you can be proficient in the world of chemistry.

The Octet Rule and Lewis Structures of Atoms

3. The Octet Rule and Lewis Structures of Atoms

Learn the octet rule and how it applies to electron energy levels. Identify valence electrons and learn how to determine them by looking at the periodic table. Also, discover how they pertain to the octet rule. Learn how to draw the Lewis diagram of an atom, and understand how it provides clues to chemical bonding.

Chemical Bonds: Ionic vs. Covalent

4. 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.

Avogadro's Number: Using the Mole to Count Atoms

5. Avogadro's Number: Using the Mole to Count Atoms

How do we move from the atomic world to the regular world? Because atoms are so tiny, how can we count and measure them? And what do chemists celebrate at 6:02 AM on October 23rd each year? In this lesson, you will be learning how Avogadro's number and the mole can answer these questions.

What is Molar Mass? - Definition, Formula & Examples

6. What is Molar Mass? - Definition, Formula & Examples

Compounds have mass, and this is what we call the molar mass. In this lesson, we will discuss the molar mass and go over examples on how to calculate it.

Calculating Percent Composition and Determining Empirical Formulas

7. Calculating Percent Composition and Determining Empirical Formulas

Learn the difference between the empirical formula and chemical formula. Learn how to calculate the percent composition of an element in a compound. Learn how, if given a percent composition, to determine the empirical formula for a compound.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

Earning College Credit

Did you know… We have over 200 college courses that prepare you to earn credit by exam that is accepted by over 1,500 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.

To learn more, visit our Earning Credit Page

Transferring credit to the school of your choice

Not sure what college you want to attend yet? Study.com has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.

Support