of Pearson's MyLab & Mastering products exist for each title, including customized versions for individual schools, and registrations are not transferable. In addition, you may need a CourseID, provided by your instructor, to register for and use Pearson's MyLab & Mastering products.   Packages Access codes for Pearson's MyLab & Mastering products may not be included when purchasing or renting from companies other than Pearson; check with the seller before completing your purchase.   Used or rental books If you rent or purchase a used book with an access code, the access code may have been redeemed previously and you may have to purchase a new access code.   Access codes Access codes that are purchased from sellers other than Pearson carry a higher risk of being either the wrong ISBN or a previously redeemed code. Check with the seller prior to purchase.   -- Chemistry: A Molecular Approach, Third Edition is an innovative, pedagogically driven text that explains challenging concepts in a student-oriented manner.  Nivaldo Tro creates a rigorous and accessible treatment of general chemistry in the context of relevance and the big picture. Chemistry is presented visually through multi-level images—macroscopic, molecular, and symbolic representations—helping students see the connections between the world they see around them (macroscopic), the atoms and molecules that compose the world (molecular), and the formulas they write down on paper (symbolic). The hallmarks of Dr. Tro’s problem-solving approach are reinforced through interactive media that provide students with an office-hour type of environment built around worked examples and expanded coverage on the latest developments in chemistry. Pioneering features allow students to sketch their ideas through new problems, and much more.   0321804716 / 9780321804716 Chemistry: A Molecular Approach Plus MasteringChemistry with eText -- Access Card Package Package consists of:    0321809246 / 9780321809247 Chemistry: A Molecular Approach 0321842928 / 9780321842923 MasteringChemistry with Pearson eText -- ValuePack Access Card -- for Chemistry: A Molecular Approach    

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