This title is a Pearson Global Edition. The Editorial team at Pearson has worked closely with educators around the world to include content which is especially relevant to students outside the United States. Chemistry: The Central Science, 15th Edition uses relevant content to engage students throughout the learning process, building skills that allow them to go beyond recall to effectively solve problems and visualize the atomic nature of the chemistry. Beyond Knowledge Recall: Integrative Exercises connect concepts in the current chapter with those from previous chapters and serve as an overall review of key concepts, helping students gain a deeper understanding of how chemistry fits together. Sample Integrative Exercises in many chapters show how to analyze and solve problems encompassing more than one concept. Design An Experiment activities provide a departure from the usual end-of-chapter exercises with an inquiry-based, open-ended approach that stimulates a student to “think like a scientist.” Designed to foster critical thinking, each exercise presents the student with a scenario in which various unknowns require investigation. The student is called upon to ponder how experiments might be set up to provide answers to particular questions about observations. Relevance: A Closer Look essays and features cover high-interest topics and have been updated to reflect recent news and discoveries in the field of chemistry, providing relevance and applications for students. End-of-chapter questions often give students the chance to test whether they understood the concept or not. Chemistry and Life and Chemistry Put to Work help students connect chemistry to world events, scientific discoveries, and medical breakthroughs. Problem Solving: How To features offer step-by step guidance for solving specific types of problems such as Drawing Lewis Structures, Balancing Redox Equations, Naming Acids, etc. These features, with numbered steps wrapped by a thin rule, are integrated into the main discussion and are easy to find. A consistent problem-solving process incorporated throughout guides students in practicing problem solving. The unique Analyze–Plan–Solve–Check feature helps students to understand what they are being asked as they solve, plan how to solve it, work their way through the solution, and check their answers. Selected sample exercises use a dual-column problem-solving strategy approach to show students the thought process involved in each step of a mathematical calculation. Data-Driven Problem Revisions were made in an informed manner with the author team consulting the reservoir of data available through Mastering Chemistry to revise the question bank. This data enabled them to analyze which problems were frequently assigned and why; to pay careful attention to the amount of time it took students to work through a problem (flagging those that took longer than expected); and to observe the wrong answer submissions and hints used (a measure used to calculate the difficulty of problems). This “metadata” served as a starting point for the discussion of which end of chapter questions to modify, replace, or delete, resulting in a more diverse and polished set of problems. Streamlined End-of-Chapter and End-of-Section Exercises are grouped by topic. Practice Exercises provide students with an additional problem to test mastery of the concepts in the text and to address the most common conceptual misunderstandings. To ensure that the questions touched on the most common misconceptions, the authors consulted the ACS Chemistry Concept inventory before writing their questions. Practice Exercises accompany each Sample Exercise within the chapters with correct answers provided in an appendix. Specific wrong answer feedback, written by the authors, will be available in Mastering Chemistry. Strategies for Success essays encourage students to think like chemists and aid students in analyzing information and organizing thoughts as a means to improve problem solving and critical thinking. Visualization: Visualizing Concepts exercises precede the end-of-chapter exercises and ask students to consider concepts through the use of models, graphs, and other visual materials. These help students develop a conceptual understanding of the key ideas in the chapter. Additional conceptual exercises are found among the end-of-chapter exercises. Molecular illustrations help students see what is happening on a molecular level in the sample exercises Multi-Focus Graphics provide a variety of perspectives including macroscopic, microscopic, and symbolic to portray various chemical concepts. Students develop a more complete understanding of the topic being presented. Computer-generated molecular illustrations provide visual representations of matter at the atomic level. Go Figure questions let students stop and take time to analyze the artwork in the text to be sure they understand the concept behind it. ENHANCED! Art creates clarity and provides a cleaner more modern look with details that include white-background annotation boxes with crisp, thin leaders plus richer and more saturated colors in the art, and expanded use of 3D renderings. Annotations offer more detailed explanations; new leaders emphasize key relationships and key points in figures. Before/after photos now more clearly show characteristics of endothermic and exothermic reactions. Added reaction equations connect the chemistry to what’s happening in the photos. MasteringTMChemistry is not included. Students, if Mastering is a recommended/mandatory component of the course, please ask your instructor for the correct ISBN and course ID. Mastering should only be purchased when required by an instructor. Instructors, contact your Pearson rep for more information. · NEW! Dynamic Study Modules help students study effectively on their own by continuously assessing their activity and performance in real time. o Students complete a set of questions with a unique answer format that also asks them to indicate their confidence level. Questions repeat until the student can answer them all correctly and confidently. These are available as graded assignments prior to class and are accessible on smartphones, tablets, and computers. o Topics include key math skills such as significant figures and scientific notation, as well as general chemistry concepts such as understanding matter, chemical reactions, and understanding the periodic table & atomic structure. Topics can be added or removed to match your coverage. · The Chemistry Primer helps students remediate their chemistry math skills and prepare for their first college chemistry course. Pre-built Assignments get students up to speed at the beginning of the course. Math is covered in the context of chemistry, basic chemical literacy, balancing chemical equations, mole theory, and stoichiometry. Scaled to students’ needs, remediation is only suggested to students that perform poorly on an initial problem. Remediation includes tutorials, wrong-answer specific feedback, video instruction, and step-wise scaffolding to build students’ abilities. · Learning CatalyticsTM helps instructors generate class discussion, customize lectures, and promote peer-to-peer learning with real-time analytics. This student response tool uses students’ smartphones, tablets, or laptops to engage them in more interactive tasks and thinking. o Upload a full PowerPoint® deck for easy creation of slide questions. o Helps students develop critical thinking skills. o Allows instructors to monitor responses to find out where students are struggling. o Instructors can rely on real-time data to adjust teaching strategy. o Automatically group students for discussion, teamwork, and peer-to-peer learning. · End-of-Chapter Questions