For one-semester courses in General, Organic, and Biological ChemistryShow the importance of chemistry in the real worldChemistry: An Introduction to General, Organic, and Biological Chemistry, Twelfth Edition is the ideal resource for today's allied health students. Assuming no prior knowledge of chemistry, author Karen Timberlake engages students through her friendly presentation style and reveals connections between the structure and behaviour of matter and its role in health and the environment.