Class Lecture Notes for CHEM 21A at El Camino Community College

The following documents are lecture materials for Chapter 5 that will be used in class. Please download them and bring them to class.


  • Chapter 5, section 5.1 - Chemical Equations
  • Chapter 5, sections 5.2, 5.4, 5.5, and 5.6 - Types of Reactions
  • Chapter 5, section 5.3 - Redox Reactions
  • Chapter 5, section 5.8 - Energy and Reactions
  • Chapter 5, section 5.9a - The Mole and Chemical Equations
  • Chapter 5, section 5.9b - The Mole and Chemical Equations
  • Chapter 5, section 5.9c - The Mole and Chemical Equations
  • Chapter 5, sections 5.10 & 5.11 - The Limiting Reactant and % Yield