Principles of Chemistry: A Molecular Approach introduces you to core chemistry concepts without sacrificing rigor. Drawing upon his classroom experience as an award-winning educator, author Nivaldo Tro presents chemistry visually through macroscopic, molecular and symbolic multi-level images. This visual approach helps you see the connections between chemistry, your future career and the world around you. Throughout this student-friendly text, active learning tools will engage you in becoming an expert problem solver and critical thinker. The 4th Edition pairs pedagogical innovation with insights from learning design and educational research to create an active, integrated and easy-to-use framework. This version of Principles of Chemistry: A Molecular Approach features the same content as the traditional bound text in a convenient, 3-hole-punched, loose-leaf format.