Information about the series: 20 years of tradition and experience. With this textbook, success in the classroom is guaranteed! The new edition of Materials - Reactions - Environment continues the successful and proven textbook concept. New elements take into account the requirements in chemistry education for the development of students' competencies. A modern and fresh design emphasizes the clear structure of the textbook. Materials and tasks convey and train subject-specific and methodological competencies, as well as self- and social competencies of the students. Method pages present important subject methods in clear, step-by-step formats. In the lab: The numerous practical experiments include motivating and easily executable experiments. Due to their clear and manageable presentation, they can be conducted by students individually or in groups. In overview: At the chapter.