Discussion about the concept of matter and energy, the concept of chemical bonds, measurements and basic laws of chemistry, the concept of chemical bonds and their types, water chemistry, calculations in chemical reactions, the concept of chemical solutions and solution concentration, the concept of colloids and emulsions, acids, bases, salts and pH, and quantitative chemistry related to the field of nutrition. Learning is carried out using the Case Study model, as well as using discussion, question and answer methods and practice solving example problems