Virtual Chemistry Text: Molecules, Compounds, & Moles

Atoms can be joined together to make molecules and compounds. A mole is a useful way of measuring an amount of atoms or larger components of matter. Define these terms and learn how to perform calculations to express quantities.

Learn the Concepts

• Types of Chemical Bonds
• What Is the Difference Between an Ionic and Covalent Chemical Bond?
• What Is a Mole and Why Are Moles Used?
• Molecules & Moles
• History: Amedeo Avogadro

Do Chemistry Yourself

• Make a Mixture & Compound
• Determine Avogadro's Number

Practice Problems

• Law of Multiple Proportions
• Avogadro's Number
• Molecular Mass Calculations
• Mole-Gram Conversions

Practice Worksheets (pdf to save or print)

• Practice Calculations with Moles - Worksheet
  
• Mole Calculations - Answers

Test Yourself

• Bonds & Compounds Quiz
• Stoichiometry Quiz

Useful Tools

• Chemical Structures
• Names of Common Chemicals
• Amino Acids
• Inorganic Compounds

For Fun

• Molecules with Strange Names

Virtual Chemistry Text Table of Contents