Electron Configurations & The Periodic Table. Structure & Bonding The study of organic chemistry must at some point extend to the molecular level, for the physical and chemical properties of a substance are ultimately explained in terms of the structure and bonding of molecules. This module introduces some basic facts and principles that are needed for a discussion of organic molecules. Types of Chemical Reactions Ppt Presentation. Chemistry links. Chemistry powerpoints. Anatomy flashcards and study tools. Upper Extremity. Anatomy and Physiology Weekly Activities. Google Image Result for.