cause of chemical combination

Under the new college entrance examination subject selection model, the chemistry and biology combination had different situations and characteristics: ** I. The situation in the "3 + 3" subject selection mode ** 1. ** Combined with politics (Chemistry + Biology + Political)** - ** Combination characteristics **: Overall, it is a science subject. Chemistry and biology belong to the natural sciences, while politics is a humanities and social science subject. The three subjects have different research objects, but there is a certain degree of connection in the development, change, summary of the rules, and learning methods of the research objects. - ** Target group **: Those who are not good at physics or memorizing but like chemistry and biology; those who want to take the postgraduate or public entrance examination in the future to lay a good political foundation in advance; those who have strong comprehension ability, strong science thinking, good at summarizing and discovering learning patterns, and have certain advantages in chemistry and biology. - ** Major coverage rate **: According to the 2024 selection requirements for national college enrollment, there are 350 majors that can be applied, accounting for less than 50%. - ** Analysis of advantages and disadvantages ** - [Strengths: Chemistry and biology questions are objective, politics won't be as easy to get low marks as physics, and it will lay the foundation for the postgraduate entrance examination. There will be little learning pressure.] - ** Disadvantages **: There are many candidates who are not good at physics who choose this combination. The competition for the chemistry and biology rankings is high. Most science, engineering, agriculture, and medicine majors require physics + chemistry subjects, which limits the choice of these majors. - ** Majors available **: Majors in law, education, literature, philosophy, economics, management, history, geography, psychology, architecture, pharmacy management, nursing, midwifery, landscape architecture, and textile. Majors in art can also participate in the art exam. Majors in physics, engineering, agriculture, and medicine are available. 2. ** Combined with geography (Chemistry + Biology + Geography)** - ** Combination characteristics **: Overall, it is more science. Chemistry and biology are less difficult to learn than physics. It requires the ability to remember and summarize. It has both geography and liberal arts thinking. It has a strong connection between disciplines. - ** Target group **: Students who have difficulty in physics but have good grades in chemistry and biology and have a certain hands-on ability; students who like geography or are good at geography; students who prefer science knowledge over liberal arts and have good grades in mathematics, good classification thinking methods, and good comprehension and memory. - ** Major coverage rate **: According to the requirements of the "3 + 3" college entrance examination reform provinces and cities such as Shandong, Tianjin, and Hainan, the major coverage rate is about 45%, and the average coverage rate is 46.21%. - ** Analysis of advantages and disadvantages ** - ** Strengths **: Chemistry and biology are less difficult to learn than physics, and most of the content is memorized and summarized. Geography has both liberal arts and science thinking, and there is a close connection between the subjects. It is easier for candidates with poor physics results to achieve the expected results. - ** Disadvantage **: The coverage of major is low, and most of them can only apply for majors that are not limited to the selection requirements. ** 2. In the "3+1 + 2" mode (If physics is excluded from the combination of physics, chemistry, and biology, only chemistry and biology are considered)** - From the perspective of chemistry and biology, chemistry and biology were suitable for students who had a strong interest in natural science. However, if the chemistry and biology combination was taken out alone, due to the lack of physics, which was often matched in the selection requirements of science, engineering, agriculture and medicine majors, there would be a lot of restrictions on the choice of majors. Because many science, engineering, agriculture and medicine majors required the combination of physics and chemistry, the chemistry and biology combination might not be able to apply for these majors. Instead, they could only choose some majors that did not have any requirements for physics, such as some sub-majors that had requirements for chemistry or biology under some liberal arts majors. Nurse, midwifery, and some other medical-related majors (if physics is not required). <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

The advantages and disadvantages of the physical, chemical, and biological combination were analyzed as follows: ##1. Strengths 1. ** A wide range of professions to choose from ** - Under the 3+1+2 independent subject selection model, this combination belonged to the traditional pure science combination. Based on the analysis of the data on the university major selection subjects in the provinces that implemented this model, the number of university majors that could apply for admission accounted for about 96% of all the enrolled majors. The number of majors that could apply for admission was large and wide. - The majors that were highly compatible with the combination of physical, chemical, and biological sciences were concentrated in science, engineering, medicine, and agriculture, such as mathematics and applied mathematics, physics, chemistry, biological sciences, electronic information engineering, materials science and engineering, chemical and pharmaceutical, environmental science and engineering, basic medicine, clinical medicine, stomatology, medical laboratory technology, agriculture, plant protection, animal science, etc. In addition, they could also apply for major courses in literature, economics, law, education, and so on. 2. ** Teacher advantage ** - In key high schools, science teachers were usually stronger. As a traditional combination of science students, chemistry students might have more advantages in terms of teaching resources and the construction of teachers. This would help students obtain better teaching guidance and knowledge transfer in the learning process. ##2. Disadvantages 1. ** Restrictions on liberal arts majors ** - Because it was a pure choice, he didn't choose history, politics, or geography, so he couldn't apply for a university major that required him to choose these subjects. For example, majors such as political science, Marxian theory, public security, public security technology, China language and literature, news and communication, geographical science, public management, etc. could not apply for the exam. For example, the education of Shanxi University and the criminal science and technology of Liaoning Police College required the selection of politics; the Chinese language and literature of Shandong University, the law of Lanzhou University and the public management major of Northeastern University required the selection of history; the geographical science of Liaoning Normal University and the architecture of Kunming University of Science and Technology required the selection of geography. Moreover, even if some universities 'minor language majors, news majors, Chinese language and literature majors, and art majors had no requirements for physics or history, students with particularly rational thinking might not be as suitable for these majors as liberal arts students. 2. ** High academic pressure ** - Physics was one of the more difficult subjects to study. The adjustment of the new college entrance examination model was to prevent a large number of students from abandoning physics. Chemistry and biology were also subjects that combined logical reasoning, hands-on experiments, and memorization. If students wanted to get high marks in these three subjects, they would need to invest a lot of time, which would cause a lot of pressure on students. In contrast, political science and other liberal arts subjects would have less pressure. 3. ** It's not easy to get high marks in Chemistry ** - Under the 3+1+2 model, chemistry and biology were recorded in the college entrance examination results. The results depended on the competitors. From the available data, chemistry was difficult and had a relatively small impact on the major. At present, there were many students who chose to take the chemistry exam. Many students with low scores gave up the chemistry exam. This would make it difficult for some students who chose to take the chemistry exam to get high marks. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

It could be because such a combination challenges traditional notions of what's appropriate in comics. Some people might find it too extreme or offensive.

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The role of chemistry songs was mainly reflected in learning chemistry knowledge. First of all, chemistry songs help to remember chemistry knowledge. For example, through songs such as "Song of Valence Essence", it makes it easier for the learner to remember the essence of valency in a catchy way.(For example, Jin Zhengfei's negative elemental zero, hydrogen, one, oxygen, two should be remembered, and the sum of positive and negative total prices is zero, etc.), the valency of elements (for example, hydrogen, hydrogen, potassium, silver, and lithium), the periodic table of elements (for every five elements, remember one sentence, such as hydrogen, helium, lithium, Be, and Boron), the order of metal activity (for example, K, Ca2, Na, Mn, Al3, ZN, iron, tin, lead (hydrogen), copper, mercury, silver, platinum, etc.), and other chemical knowledge. Secondly, chemistry songs could increase the fun of learning chemistry. For example,"Chrysanthemum Terrace·Chemistry Song" was to give students a more complete impression of chemistry knowledge. It could make students feel that although chemistry was a rigorous science subject, it could also be appreciated like poetry, songs, and essays. This would stimulate students 'love and enthusiasm for chemistry, allowing students to gain more surprises and happiness in their studies. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

Brain science and psychological research showed that love was a biological program. From a biological point of view, love was dominated by the power of evolution, and it was affected by hormones. All caring behaviors stemmed from multiple attractions, and crazy behaviors were to pass on genes to future generations. Dopamine played a leading role. About one-tenth of partners who had been together for 20 years would quickly secrete a large amount of Dopamine in their brains after seeing a photo of their lover. In addition, the feeling of obsession was a hormone that secreted phelethylamin (PPA), which was similar to dopamine-induced intoxication. It was only effective for 18 to 36 months for the same stimulant.

Here are some chemical formulas for love: 1. [H: Even if I am small and humble, I will use all my life to restore your true nature.] 2. Helium (He): I am the element from the sun, and you are my sunshine, lighting up my dim soul. 3. [Li: If I can't keep your phone running…I will come to your side and embrace your loneliness into warmth.] 4. Be: Shattering is very bitter, soaking in acid is very painful, but if you like emeralds, I will also be crushed to pieces for you. 5. Boron (B): No one pays attention to the brown powder. It can only be used as a bag of antiseptic in the corner to ensure that it will never change its mind for the rest of its life. 6. [C: Do you know how long the half-life of carbon-14 is? It's less than one-thousandth of the time I've been waiting for you.] 7. [N]: The stable nature is your unchanging heart. Even if you don't accept me, I'm willing to protect you silently by your side. 8. [O: You are an indispensable part of my life. I can't live without you.] 9. Neon (Ne): Your "electricity" for me has aroused the "fire" in my heart. 10. [Magnetite (MG): I am willing to burn myself for you, dazzling light, just hope you can pay attention to me.] 11. [AI: I want to stay close to you, just to form a protective film that belongs to you and protect you from harm.] 12. Phosphorous (P): Your little bit of enthusiasm can make me burn happily for you. 13. H ^+ O ^= H ^O: I am a hydrogen ion, you are a hydrogen ion, and together we are the source of life, H ^O.

The chemical reactions in relationships involved biological processes. The brain releases chemicals such as Dopamine, Pitocin, and Serotonin that make people feel pleasure, attachment, and love. This effect is similar to the addiction caused by drugs. From the perspective of brain science and psychology research, romantic love was a biological program. Caring behavior stemmed from a variety of attractive forces. From a biological point of view, love was dominated by evolutionary forces and acted through hormones, of which Dopamine played a leading role. For example, among couples who have been in a relationship for 20 years, about one-tenth of them will quickly secrete a large amount of adrenaline in their brains after seeing a photo of their lover, which may cause love to fade or break up. The longest shelf life during a relationship could be four years, but many people chose to stick to their love because of responsibilities, children, parents, and other factors. Some people continued to inject new energy into their love to extend the duration of their love. In addition, people with different personalities would have different " chemical reactions " when they were together. For example, fawning personalities and highly sensitive personalities were more sensitive and delicate, and they would attract each other. However, due to different core needs, fawning personalities often suffered when they got along. Moreover, there was the Romeo and Juliet effect. When there were external forces that interfered with the relationship between the two parties, the relationship between the two parties might be stronger.