Green Chemistry: Green chemistry looks at ways of minimizing the environmental impact of chemical processes.Often, electrons are the charge carrier, but the discipline also investigates the behavior of ions and protons. Electrochemistry: Electrochemistry examines the movement of charge in chemical systems.Chemical Kinetics: Chemical kinetics (or simply 'kinetics') studies the rates of chemical reactions and processes and the factors that affect them.Astrochemistry: Astrochemistry examines the abundance of elements and compounds in the universe, their reactions with each other, and the interaction between radiation and matter.Biochemistry is closely related to molecular biology, cell biology, and genetics. Sometimes this discipline is considered a subdiscipline of organic chemistry. Examples of key molecules include proteins, nucleic acids, carbohydrates, lipids, drugs, and neurotransmitters. Biochemistry: Biochemistry is the study of chemical processes that occur inside of living organisms.Physical Chemistry: Physical chemistry is the branch of chemistry that applies physics to the study of chemistry, which commonly includes the applications of thermodynamics and quantum mechanics to chemistry.Analytical chemists develop standards, chemical methods, and instrumental methods. Analytical chemistry includes quantitative and qualitative analysis, separations, extractions, distillation, spectrometry and spectroscopy, chromatography, and electrophoresis. Analytical Chemistry: Analytical chemistry is the study of the chemistry of matter and the development of tools to measure properties of matter.Topics of interest to inorganic chemists include ionic compounds, organometallic compounds, minerals, cluster compounds, and solid-state compounds. A few inorganic compounds do contain carbon, but most contain metals. It is the study of inorganic compounds, or compounds that don't contain a C-H bond. Inorganic Chemistry: Inorganic chemistry is the study of compounds not covered by organic chemistry.An organic chemistry might study organic reactions, the structure and properties of organic molecules, polymers, drugs, or fuels. It is the study of the chemistry of life and reactions occurring in living organisms. Organic Chemistry: Organic chemistry is the study of carbon and its compounds.

Physics chemistry