This educational book presents the material to be examined in the Chemistry course of the 3rd grade of High School in the Science direction.

Each chapter follows the following structure:

• Presentation of the theory in the form of questions - answers, so that the student focuses on the most important points of each paragraph and can quickly review whenever desired.
• Evaluation topics that include various types of questions.
• Exercises for solution and combined problems.
• Evaluation criteria.

At the end of each paragraph, the answers to the evaluation questions and the solutions to the exercises are included.