Have you ever wondered about the differences between liquids, gases, and solids? Or what actually happens when something burns? What exactly is a solution? An acid? A base? This is chemistry—the composition and structure of substances composing all matter, and how they can be transformed. Whether you are studying chemistry for the first time on your own, want to refresh your memory for a test, or need a little help for a course, this concise, interactive guide gives you a fresh approach to this fascinating subject. This fully up-to-date edition of Chemistry: Concepts and Problems: