-
Anonymous users2024-02-07Junior high school? Hehe back is a must be memorized, like the periodic table, chemical equations are all to memorize, of course, the back alone can not be solved, the class to listen well, there is also a doorway. Chemistry is not difficult, don't study with a resistant heart, there are many benefits to learning chemistry, you can think, learn chemistry well, you can make explosives, you can blow up schools, right?
Haha Good luck with your studies!
-
Anonymous users2024-02-06I don't think you need to memorize it, you only need to memorize the formulas for physical chemistry, and you need to memorize the formulas of special chemical reactions and the reactions of some special substances.
There are not many reactions and special chemical reactions of special substances in chemistry in junior and senior high schools, and most of the exams are for these special parts, while the other Dongsi should understand, sort out the special chemistry exams, you can basically get half of the score!!
-
Anonymous users2024-02-05When you first start learning a foreign language, you will definitely need to memorize 26 letters, so that even if you memorize many words (which is necessary), it means that you are good at English.
Chemistry is a relatively late course, so some basic knowledge needs to be memorized in the early stage, and many chemical properties are very regular. It is not difficult to learn chemistry well, read more books and be careful. No problem.
-
Anonymous users2024-02-04No, like a calculation problem, it's not rote memorization, it's skillful, like physics.
-
Anonymous users2024-02-03Almost, it's not rote memorization, looking for relationships.
-
Anonymous users2024-02-02You can remember the questions if you do more, and it's not so troublesome. . .
-
Anonymous users2024-02-01<> the role of learning chemistry is as follows:
1. The purpose of studying chemistry is to improve the cognitive ability of things.
Understanding the basic common sense and phenomena that are closely related to daily life, so as to analyze problems with scientific methods, is to form a good thinking ability.
The key to improving quality is an important method.
2. Understand the principle of chemical change, understand some chemical phenomena in life and production, and control chemical change to make it develop in the direction of human benefit.
3. It can refine the substances that originally existed in nature, and can also produce substances that did not exist in nature. It can help people develop new materials, research new energy sources, study the signs of life, rationally use resources, prevent pollution and protect the environment.
Promote agricultural production and human health.
4. Chemistry is one of the main methods and means used by people to understand and transform the material world. Chemistry is a discipline with a long history and vitality, and the achievements of chemistry are important symbols of social civilization.
1.Laying a good foundation The main thing is to memorize the basic knowledge in the textbook. Teach you how: >>>More
The equation valence metal activity sequence table and water solubility must be memorized, and more importantly, some matters about the experiment, pay attention to the problems, remember the chemical and physical properties of some substances, in fact, there are not many substances such as oxygen, water, hydrogen, acid and alkali salts, carbon dioxide, carbon monoxide, iron, copper, not much, but also remember some reactions with precipitation and bubbles, and memorize experimental phenomena. Calculation, the usual exam should not be difficult, the equation must be memorized, do not memorize what you answer, in fact, it is not difficult to memorize, there are rules, memorize to know the rules, remember rote memorization, so remember not to remember! In fact, everything is the same, which means that you have not mastered the basic knowledge, and you still need to do more questions in chemistry. >>>More
Actually, it's easy to learn chemistry well.
First of all, master the knowledge points in the book, and secondly, do more questions to deepen your understanding. >>>More
If high school students want to learn high school chemistry well, they should not only rely on careful listening in class to improve their chemistry scores, but also rely on timely consolidation after class to help them complete a deeper understanding of chemistry. In addition to the consolidation of knowledge points, high school students should also review and summarize their classroom listening status, high school students can summarize their classroom listening status from the record of their class notes, and then reflect on their own shortcomings in the lectures, and remind themselves to correct them in time, and look for something similar to Chengdu 211Educate such training schools, develop plans with the help of professionals, and learn high school chemistry with methods and skills.
High school chemistry formulas are:Reaction of sulfur with sodium s+2na===na2s >>>More