For one or two-semester courses in General Chemistry. Great chemistry comes in small packages. Adapted from Nivaldo J. Tro’s best-selling general chemistry text, his new Principles of Chemistry: A Molecular Approach focuses exclusively on the core concepts of general chemistry without sacrificing depth or relevance. Tro's unprecedented two- and three-column problem-solving approach is used throughout to give students sufficient practice in this fundamental skill. A unique integration of macroscopic, molecular, and symbolic illustrations help students to visualize the various dimensions of chemistry; and Tro’s engaging writing style captures student’s attention with relevant applications.