Did you know that all of the elements in the known cosmos can be listed in a table on a single sheet of paper and that chemical combinations of those elements make up the thousands of substances that we interact with every day from space craft propulsion to the batteries in our electric cars?  That's chemistry.  This book will help you to understand the concepts and principles of chemistry and chemical reactions in a manner that allows you to read a short section and then interact with that information in a way that will reinforce what you just learned in a step-by-step tutorial manner.  It's designed so that you can learn the subject on your own at your own pace and is complete with self-tests and references for review.   About the only requirement is some basic high school math.  The book covers most of a typical college-level course in general chemistry and gently leads a student to deeper levels and concepts with practice, critical...