What are the four basic courses of chemistry?

Four basic courses of chemistry: inorganic chemistry, organic chemistry, physical chemistry and analytical chemistry.

1. Inorganic chemistry is a science that studies the composition, properties, structure and reaction of inorganic substances. It is the oldest branch of chemistry. Inorganic substances include all chemical elements and their compounds, except most carbon compounds.

2. Organic chemistry can be divided into natural organic chemistry, general organic chemistry, organic synthetic chemistry, metallic and nonmetallic organic chemistry, material organic chemistry, bioorganic chemistry and organic analytical chemistry.

3. The main theoretical pillars of physical chemistry are thermodynamics, statistical mechanics and quantum mechanics. Thermodynamics and quantum mechanics are suitable for microscopic systems, and statistical mechanics is the bridge between them. In principle, statistical mechanics can be used to infer or calculate the macroscopic phenomena of matter from the microscopic data of a single molecule and atom.

4. Analytical chemistry is a science and an important branch of chemistry, which studies the analytical methods and theories of chemical information such as composition, content, structure and morphology of substances.

Extended data 1, research content of inorganic chemistry

The method of collecting facts is observation and experiment. Experiments are observations under controlled conditions. Chemical research pays special attention to experiments, because the chemical changes in nature are very complicated, and it is not easy to get the essence of things by direct observation.

Whether observing or experimenting, the collected facts must be accurate. Various operations in chemical experiments, such as precipitation, filtration, burning, weighing, distillation, titration, crystallization, extraction, etc.

2. Research content of organic chemistry

Organic synthesis mainly studies the synthesis of organic compounds from simple compounds or elements through chemical reactions.

3. Research contents of physical chemistry

The recognized research contents of physical chemistry can be roughly summarized into three aspects: the macroscopic equilibrium properties of chemical systems, the microstructure and properties of chemical systems, and the kinetic properties of chemical systems.

4. Research contents of inorganic chemistry

Analytical chemistry is an important branch of chemistry, which mainly studies which elements or groups are in substances (qualitative analysis); The quantity or purity of each component; How atoms are connected into molecules, how they are arranged in space and so on.

Baidu encyclopedia-chemical classification