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Chemistry is a natural science that studies the composition, structure, properties, changes, preparation and application 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.
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Chemistry is both the science of nature and the science of man. In the development of contemporary science, they are moving towards unification. Therefore, modern chemistry is not only a means of understanding the evolution of life processes, but also a means of human existence and liberation.
Its various fields of study are directly or indirectly related to the development of human society. With the development of society, chemistry has become a central science to meet the needs of society, creating modern material civilization and spiritual civilization, and constantly influencing the development and progress of human society.
Modern chemistry offers a wide variety of new materials for the continuous improvement of the quality of life and the expansion of consumer lifestyles. Today, the world's cotton production is not very sufficient, and it is far from satisfying people's clothing needs. The chemical fiber industry has been able to provide more than 10 million tons of products every year.
Plastics have not only become structural materials and decorative materials for furniture, but also have a wide range of uses in building materials, communication materials, packaging materials, etc. At present, the world's annual plastic production has reached more than 60 million tons. The rapid development of modern chemical science and technology, especially the development of directional synthesis catalysts and the adoption of molecular tailoring technology, has made it possible to make a variety of handy materials.
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Pros: 1. The use of chemical fertilizers and pesticides has increased the yield of crops;
2. The synthesis of new drugs has saved millions of lives;
3. The development of clean and pollution-free energy will change our blue sky and clear water.
Disadvantages: While promoting development, it will inevitably bring some disadvantages. The mass production of the national economy requires a large number of raw materials, which causes a large amount of resources to be consumed in order to produce, which will cause great harm to the environment in resource exploitation;
In production, there will be a lot of production wastewater, and some unscrupulous manufacturers will directly discharge the sewage that does not meet the standards, causing serious harm to the environment and residents; In the later stage, many chemical products cannot, such as plastics, etc., will also cause environmental pollution.
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1.Chemistry plays an important role in guaranteeing the survival of human beings and continuously improving the quality of life of human beings. Such as:
the use of chemicals to produce fertilizers and pesticides to increase food production; The use of chemical synthesis drugs to inhibit bacteria and viruses and protect the health of human type; the use of chemistry to develop new energy and new materials to improve the living conditions of human beings; The use of chemistry for the integrated application of natural resources and the protection of the environment.
In order to make human life better.
2.Chemistry is a practical discipline, which, together with mathematics, physics and other disciplines, has become the foundation for the rapid development of natural sciences. The core knowledge of chemistry has been applied to all areas of the natural sciences, and chemistry is an important pillar of the powerful force that creates and transforms nature.
At present, chemists use the perspective of chemistry to observe and think about social issues.
Use the knowledge of chemistry to analyze and solve social problems, such as energy problems, food problems, and environmental problems.
Health issues, resources and sustainable development.
and so on. 3.The intersection and penetration of chemistry and other disciplines have produced many marginal disciplines, such as biochemistry, geochemistry, cosmochemistry, ocean chemistry, atmospheric chemistry, etc., which have led to the rapid development of science and technology such as biology, electronics, aerospace, travel laser, geological agglomeration, and oceanography.
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