Is it possible to have an absolute plane in chemistry and physics?

From a macro point of view, to the naked eye, of course, the so-called smoothing will be seen. From a microscopic point of view, matter is composed of molecules, molecules are composed of atoms, molecules can be seen as spherical atoms from a certain point of view, there is a certain distance between atoms, and there is also a certain distance between molecules. The answer is no.

This metaphor can also be used as a macrocosm of the universe, imagine that a universe composed of many planets can be cut into an absolute plane?

The light of the laser is reflected or refracted by particles in the air, which makes the material to be cut by the laser not absolutely smooth on the microscopic level. And because there is no absolute vacuum, it is impossible to make an absolutely smooth substance in this way.

However, in an ideal state, planar crystals such as graphene can be regarded as absolute planes, and other crystals cannot be absolutely smooth due to the problem of unit cells (the unit cell is infinitely repeated, but the edge of the crystal is not repeated according to the unit cell, so it is impossible to be smooth).

The word absolute basically does not exist in science students, for example, absolute zero is unattainable, cutting the plane with the method you said, it may be the best plane that people can think of, but first of all, the substance cannot be completely free of impurities, when laser cutting, there are always uneven places on the surface, and a series of reactions such as vaporization and decomposition that occur during cutting are also uneven, so although the plane obtained is very flat from the naked eye, there may be no difference at all, but we all know, He can't be absolutely flat.

You tell him that there are no absolutes in everything. Be a man and leave a line.

Lithium cobalt oxide, lithium manganese oxide, ternary material.

One pole is lithium, which is commonly used to form graphite to form Lic8, etc., and the other pole is lithium salt.

Chemistry: guarantees that atoms do not change Physics: guarantees that substances other than atoms do not change.

It is true that physics is the basis of chemistry, and chemistry must be based on physics, but all theories of physics do not need the support of chemistry.

For example, the density of a substance (organic matter is often separated by density), the melting and boiling point (used for separation), and the shape and structure of the substance.

Density, change of state of matter, melting point, boiling point, theory of molecular thermal motion.

Physical changes: separation, adsorption, etc.

Which teacher is good is which reaction.

Physical chemistry or chemical physics will be generated, but most of them will generate physical chemistry, because only USTC has chemical physics.

Physicochemical reactions!!

Depending on the situation, the general physical reaction lags behind the chemical reaction, referred to as the physical and chemical reaction.

Yes, you can apply for a double bachelor's degree.

You can take elective classes, and you can go to the side and listen to it if you have nothing to do.

Chemical change, there is CO2 and water formation.