Part 1 - In the book, readers will get acquainted with the history of chemistry, the role of outstanding scientists in the development of science, get modern ideas about solutions, the most important classes of inorganic compounds, as well as the structure of matter at a modern scientific level. Part 2 - The book contains interesting information about the theory of electrolytic dissociation, the properties of metals and alloys, the achievements of inorganic chemistry in various industries and agriculture, modern environmental problems and ways to solve them. This information emphasizes the importance of chemistry in the development of modern society.