More specifically, you could be referring to:
* Inorganic chemistry: This branch focuses on the study of the properties and reactions of inorganic compounds, which are generally compounds that do not contain carbon-hydrogen bonds.
* Organic chemistry: This branch focuses on the study of the properties and reactions of organic compounds, which are generally compounds containing carbon-hydrogen bonds.
* Physical chemistry: This branch focuses on the physical aspects of chemical reactions, such as thermodynamics, kinetics, and quantum mechanics.
Ultimately, all of these branches of chemistry are involved in understanding how elements and compounds interact and react with each other.