Why is chemistry a central subject?

Chemistry is related to the needs of many aspects of society, can meet people's needs for clothing, food, housing, transportation, improve health and overcome diseases, and is an important pillar of the national economy in modern society. Chemistry is a science that connects the past and the next, and can play a foundational, leading, driving and promoting role in the development of related disciplines. Academician Xu Guangxian pointed out:

Science can be divided into upstream, midstream and downstream according to the degree to which it studies the object of study, from simple to complex. Mathematics and physics are the upstream, chemistry is the midstream, and sunrise sciences such as life, materials, and the environment are downstream. The object of upstream scientific research is relatively simple, but the depth of research is very deep.

The research objects of downstream science are relatively complex, and in addition to using the methods of this science, if the theories and methods of upstream science are borrowed, it can often achieve twice the result with half the effort. Chemistry is the central science, a necessary place to go from upstream to downstream"; "Chemistry is very closely related to the eight sunrise sciences such as life and materials, and many important interdisciplinary disciplines have been produced", so that chemistry has become the center of the relevant discipline group.

It can be seen that chemistry is a central discipline, which originally means that chemistry is used as an intermediate medium between other natural sciences, or between natural sciences and engineering technology. For example, modern life sciences and materials science cannot reach a high level without the intervention of chemistry; Mathematics and physical sciences also need to play a better role in biological and materials science through the mediation of chemistry. To say that "chemistry is a central discipline" is not to say that chemistry is the most important of all disciplines, but only to explain its multilateral relationship and status in the social and scientific system.

Let's not just say that "chemistry is a central subject" without explanation, and we must not take things out of context, misunderstand, and be blindly arrogant.

This center is that all science involves chemistry, eating (vinegar, oil, etc.), wearing (fabrics of various colors, etc.), living (building materials, etc.), using too much (toothpaste, etc.), all the oxidation that is visible to the naked eye and invisible is happening all the time, and there is no chemistry in life? So it's the foundation is the central science.

This is an open question, and it makes sense.

Center: It is related to many subjects, and biology is called biochemistry. and physics called materialization.

With medicine it is called medicinal chemistry. There are also connections with many disciplines, astronomy and so on.

Because chemistry involves many disciplines and is the central subject.

Chemistry, like physics, is the basic science of natural science. Many people call chemistry "the central science" because chemistry is at the heart of some sciences, such as materials science, nanotechnology, biochemistry, etc.

Classification of Disciplines. Inorganic chemistry is the chemistry that studies inorganic compounds.

Elemental Chemistry. Inorganic synthetic chemistry is the construction of inorganic molecules through various inorganic reactions.

Organic chemistry is the study of the structure, properties, and preparation of organic compounds, also known as the chemistry of carbon compounds.

Organometallic chemistry is a sub-course of organic chemistry and inorganic chemistry that overlaps, and studies various problems such as the chemical reaction and synthesis of organometallic compounds containing metals (including metalloids) and carbon atom bonds.

Organic Synthetic Chemistry.

Natural Organic Chemistry.

Analytical chemistry is the development of methods for analyzing the composition and structure of substances, so that the chemical composition can be qualitatively and quantitatively determined, and the chemical structure can be determined.

1.In the process of modern civilization, all aspects of human clothing, food, housing and transportation happen to involve chemical knowledge and chemical products, that is, the so-called "chemicalization of human society and socialization of chemical knowledge".

2.Therefore, people need to study the basic theories related to chemistry and their related applications, so the discipline of chemical and chemical deficiency has been formed.

Chemistry is first and foremost an experimental discipline and then a theoretical subject. But in today's environment, our secondary school chemistry is just about getting a good score in the exam!So we study chemistry to a large extent to prepare for exams.

Although we don't just study chemistry to cope with exams, if we can't even cope with exams, it is a bit too low-grade. In order to learn chemistry well, there is no doubt that we should first pay attention to chemistry in experiments and in life. What is in a book is always in a book, and you will never learn real chemistry without practice, or you will not have a real relationship with chemistry.

For example, everyone knows that iodine turns blue when it meets starch!But do you know what blue is?

What kind of blue is it?How is it different from the pure blue ink we use?In fact, the experiment is not so simple.

What do you think a book is!Does it say blue is blue?Sometimes we find green or darker colors!

Why?Everyone knows that any truth is established under certain conditions. It's the same for experiments.

Iodine reacts with starch to turn blue, and this blue is very special. I think the students who have done this experiment will have a deep understanding. Because many students have a problem, anyway, these drugs are not mine, in order to ensure that the effect of my experiment is obvious, the more the merrier, the result is that once the iodine is added, it will appear green or other colors.

Chemistry experiments are the basis for the survival and development of chemistry, and the standard for testing whether chemistry is a real thing. For students, experiments are an important content and way to acquire chemical experience knowledge and test chemical knowledge.

The study of chemical theory is actually a sentence: concentrate on it, ask more questions, and think more.

What is "chemistry"? The fantasy of turning stones into gold has created a discipline.

Chemistry is a science that studies the composition, structure, properties, changes and changes of matter at the atomic and molecular levels. It plays an important role in our understanding and use of matter, the world is composed of matter, chemistry is one of the main methods and means used by human beings to understand and transform the material world, it is a long and dynamic discipline, it is very closely related to human progress and social development, and its achievements are an important symbol of social civilization.

From primitive societies that began to use fire, to modern societies that use various man-made substances, humans have enjoyed the fruits of chemistry. Human life can be continuously improved and improved, and the contribution of chemistry plays an important role in this.

Chemistry is one of the important basic sciences, which has developed rapidly in the interpenetration with physics, biology, physical geography, astronomy and other disciplines, and has also promoted the development of other disciplines and technologies. For example, the results of nucleic acid chemistry have raised today's biology from the cellular level to the molecular level, establishing molecular biology; The analysis of the chemical composition of the earth, the moon and other stars has led to the law of the distribution of elements, the existence of simple compounds in interstellar space, the experimental data for the evolution of celestial bodies and modern cosmology, and the enrichment of the dialectics of nature!

Chemistry is an experiment-based science.

Daily life, clothing, food, housing, and transportation are inseparable from chemistry, which provides us with all the materials for life and production.