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With this e-book you will be able to tackle homework problems and even Advanced Placement exams with confidence. Packed with hands-on activities, real-life examples, step-by-step lessons, _targeted practice exercises, and effective test-taking strategies, it provides you with the tools to master essential chemistry skills in no time. You'll find a pretest to assess your chemistry knowledge and a posttest to show you the progress you've made. With hundreds of exercises, it will guide you through all of the fundamental chemistry topics you need to know, in just 20 minutes a day.