This book aims to provide a methodical approach for students of the 3rd grade of Lyceum to access and assimilate the material, so they can understand the subject of chemistry and perform to the best of their ability in the national exams, while building a solid foundation in Chemistry.

It contains classification of questions and exercises into categories, combined with the appropriate methodology for solving each case, as well as many examples of questions and exercises for a more effective understanding of the material.