This Grade 12 Chemistry Guide for the ES (Economics & Sociology) and LH (Literature & Humanities) sections is developed in full alignment with the Lebanese national curriculum, supporting students in mastering essential chemistry concepts and preparing effectively for the official Lebanese Baccalaureate examinations.
The guide focuses on the chemistry content required for ES and LH tracks, including matter and its transformations, chemical reactions, acids and bases, solutions, stoichiometry, energy changes, environmental chemistry, everyday chemical applications, and laboratory safety. Concepts are presented in a clear, simplified, and structured manner, emphasizing understanding rather than heavy mathematical treatment













