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For decades, renowned authors Steve and Susan Zumdahl have helped students build critical thinking skills while learning to “think like chemists.” In “Chemistry: An Atoms First Approach,” Fourth Edition, Steve and Susan Zumdahl, along with new co-author Don DeCoste, build on this approach with a strong emphasis on conceptual understanding and problem-solving skills. Students move fluidly from molecules, structure, and bonding to more complex materials and their properties. In WebAssign, Cengage’s learning platform, students reinforce course concepts and build learning confidence through interactive problems, instant feedback, and built-in support.