1. The Sword Family is related to the ancient culture of China.
Jia Xu is an ancient poem in The Book of Songs, which reflects the ancient people's experience and feelings about nature and life in China. It is not only a literary work, but also an important part of China ancient culture.
2. The definition of atomic equation
Atomic equation is a mathematical model to describe chemical reactions. It consists of chemical equations and molar variables of substances, and is used to express the quantitative relationship of substances before and after chemical reactions.
3. The basic principle of atomic equation
The atomic equation is based on the law of conservation of mass and the law of stoichiometry, in which the law of conservation of mass points out that in a closed system, the total mass of matter remains unchanged; The law of stoichiometry points out that the molar ratio of substances is fixed in the reaction.
4. Representation of atomic equations
Atomic equations represent substances involved in chemical reactions through chemical symbols and numbers. Chemical symbols represent elements and compounds, and numbers represent molar coefficients of substances.
5. Balance of atomic equations
The chemical reaction in the atomic equation needs to satisfy the law of mass conservation and stoichiometry, that is, the molar ratio of substances before and after the reaction remains unchanged. When the reaction is unbalanced, it can be balanced by adjusting the coefficients in the chemical equation.
6. The application of atomic equations
Atomic equation has important application value in chemical experiment, chemical industry and environmental protection. It can be used to calculate the molar ratio of chemical reaction, predict the quantity of products and analyze the energy change of reaction.
7. The development of atomic equations
The development of atomic equations can be traced back to the French chemist lavoisier at the end of 18. He put forward the concepts of the law of conservation of mass and the law of stoichiometry, which laid the foundation for the formation of atomic equations.
8. The relationship between atomic equation and quantum mechanics
Atomic equation describes the quantitative relationship between substances in chemical reactions, while quantum mechanics studies the behavior and properties of microscopic particles. Although the research objects and methods are different, atomic equations can still be used as a powerful tool for chemical research.