This introduction to chemical reactions activity will take three to four days to complete. It is a solid foundation for understanding more difficult concepts in chemistry such as stoichiometry. The main concepts covered are 1) The Law of Conservation of Matter and Balancing Chemical Equations 2) Calculating the Molar and Formula Masses of species in a chemical reaction and verifying that the Law of Conservation of Matter is being followed 3) The main classes of chemical reactions 4) An introdu