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On the plus side:
1. Organic synthesis of new drugs, ** some stubborn diseases.
2. Promote food preservation, storage and transportation, and improve the taste of food.
3. Synthetic new materials, which replace traditional materials, are more durable and economical.
On the downside:
In fact, it is mainly due to human factors, some black-hearted merchants have mixed ingredients that should not be used in food into food, such as: clenbuterol, insurance powder, sulfur-smoked white fungus, birth control pills to feed seafood, artificial eggs, artificial kelp and so on. Among them, let's talk about Clenbuterol.
This thing was first developed by a scientific researcher in the United States, in fact, it does not have the ability to really convert fat into lean meat, as we all know, fat is white, lean meat is red, and clenbuterol just changes the color of fat to red, why does it really look like it has become lean meat. Later, the country began to develop its own thing, a professor of Zhejiang University took the lead in doing it, and then, all over the country began to promote the use of clenbuterol, the normal situation is to feed clenbuterol a month before the pig slaughter, but then the situation got out of control, pig farmers around the country in order to make more money, the desire for profit, constantly increase the amount of clenbuterol, and constantly advance the feeding time, which led to the current situation.
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You don't leave chemistry all the time, you take in oxygen and carbon dioxide comes out, you eat organic matter and react in your body to generate energy, you exercise the sugar reaction in your body to release energy...
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Chemistry is everywhere, what else do you have that doesn't have chemical ingredients added to it? Food, clothing, transportation, and housing are everywhere. That's too big, isn't it?
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Rust can be removed with hydrochloric acid.
Photosynthetic left and right. Hydrated lime can be used for reasons in construction.
Neutralize excess stomach acid with magnesium hydroxide.
Why real gold is not afraid of fire. Wait a minute.
This is all known by studying chemistry.
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The important role of chemistry in our lives:
1. Clothing: chemical fiber products alleviate the shortage of cotton, and even surpass chemical fiber in terms of performance.
2. Drugs: The synthesis of various medical drugs protects human health.
3. Food: water treatment to reduce diseases; Preserving, prolonging the shelf life of food.
4. Housing and transportation: the synthesis of various building materials to improve living conditions. Synthesis of transportation chemical raw materials such as automobiles to improve traffic conditions.
5. Leisure and entertainment: the development of various sports equipment materials, and the synthesis of various new entertainment materials.
The Significance of Studying Chemistry:
Chemistry is a very practical science, and through the knowledge of atoms, we learn to control atoms and molecules. Let's have a better life, so be interested in chemistry.
It is also one of the important tasks of chemistry that we use analysis and simulation methods to solve many puzzles that make up matter, and to develop a large number of new substances and materials that do not exist in nature. Therefore, after understanding the importance of chemistry, we should work harder to learn about chemistry.
Chemistry is not only the rapid development of high and new technology, but also will provide more effective ways to solve environmental problems and energy problems. Therefore, when we study chemistry, we should combine it with facts and learn better.
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1. Ensure the survival of human beings and continuously improve the quality of human life.
2. Chemistry is a practical discipline, which together with mathematics, physics and other disciplines has become the foundation for the rapid development of natural science.
3. The use of chemistry to comprehensively apply natural resources and protect the environment to make human life better.
4. Use the knowledge of chemistry to analyze and solve social problems, such as energy problems, food problems, environmental problems, health problems, resources and sustainable development issues.
5. Cultivate the psychology of continuous improvement, discovery, exploration and curiosity, stimulate the desire of human servants to understand and understand nature, and enrich people's spiritual world.
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Modern Chemistry and the Meaning of Life: Banquet Model.
1. Bring chemistry to the life of the sedan chair, strengthen the connection with social life, make chemistry teaching close to the actual life of students, let students learn chemistry knowledge in the context of social life, and make them understand the value of chemistry in modern life. As a highly practical science, chemistry is not only a theoretical knowledge for human beings to understand nature, but also plays a very important role in production and life and in solving various problems faced by human beings. Many chemical problems are proposed, solved, and achieved theoretically or technically as the result of the application of chemical science and technology in production and life, so the return of chemistry to life is the requirement of the development of chemical science.
2. From the perspective of students' development, students can not only experience the connection between chemical knowledge and social life, but also enable students to more deeply understand the significance of chemical knowledge to society and their own future, develop the ability to make judgments, reflections and decisions on the surrounding social problems involving chemistry, form a sense of responsibility for individuals, society and the environment, and become qualified citizens with scientific literacy in modern society.
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