Class Lecture Notes for CHEM 20 at El Camino Community College

The following documents are lecture materials for Chapter 2 that will be used in class. Please download them and bring them to class.


  • Chapter 2, section 2.1 - Energy
  • Chapter 2, section 2.2 - Energy and Nutrition
  • Chapter 2, section 2.3 - Temperature Conversions
  • Chapter 2, section 2.4 - Specific Heat
  • Chapter 2, section 2.5 - States of Matter
  • Chapter 2, section 2.6 - Changes of State