Essentials of Introductory Chemistry, Third Edition helps students master the quantitative skills and conceptual understanding they need to gain a deep understanding of chemistry. Unlike other books on the market that emphasize rote memory of problem-solving algorithms, Essentials of Introductory Chemistry takes a conceptual approach with the idea that focusing on the concepts behind chemical equations helps students become more proficient problem solvers.   The Third Edition retains the engaging narrative and stunning illustrations that have made Russo/Silver so popular with students, while adding a powerful new media package and expanded problem-solving pedagogy designed to help students master the material.  An Audible- MP3 workbook allows busy students to study on the go, interactive "clicker" questions written specifically for the Third Edition enable faculty to quiz and test students during lecture, and InterAct Math exercises on the text-specific website help students get up to speed on important quantitative topics. New end-of-chapter visualization and group problems foster student understanding and collaboration, while hundreds of new worked examples and problems provide students more practice opportunity than ever before.