Both physics and mathematics are needed, and all sciences are inseparable from the basic knowledge of these three disciplines. But different research directions have different requirements. Basic physics and advanced mathematics in colleges and universities must be mastered, and certain physical experiment operation skills are needed, because the physical properties of chemicals are also very important. If the research direction is physical chemistry and quantum chemistry, it needs a deep physical foundation. In inorganic chemistry and organic chemistry, biochemistry is not so important. If we study quantum chemistry, physical chemistry or analytical chemistry, we also have high requirements for mathematics, especially quantum chemistry, a branch of chemistry with strong theory, which basically uses mathematics as the main tool.

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