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How to say, you have to have a good foundation in learning chemistry, so I think you should look at the basic things now, really understand the inner things, don't rush to do the difficult questions first, and do the simple questions thoroughly. In addition, when learning chemistry, it is very important to learn to take notes, and you must write down what you think is useful, as the saying goes: "a good memory is better than a bad pen".
One of my feelings is that when doing the problem, it is best to be able to associate it, and if you do this problem, you can associate the knowledge points in the book and other practice questions is the best effect. There is still more than 1 year before the college entrance examination, and there is still plenty of time.
To add: I am from Jiangsu, and I scored an average of 138 in chemistry in 10 major exams in my junior year of high school
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1.I am sure that if I can learn other science subjects well, I will definitely be able to learn chemistry well.
2.Memorize the knowledge of regularity and the anomalies in the law, such as the reaction of halogen with water, generally to form acid and hypohaloic acid, but fluorine gas reacts with water to form hydrofluoric acid and oxygen.
3.Pay attention to the summary of the problem-solving methods, such as the extreme value method, the cross method, the average method, etc.
4.Redox is the key and difficult point in inorganic chemistry, and many inorganic reactions are redox reactions, so pay attention to the formation of redox thinking.
5.Memorize some basic knowledge, such as ion coexistence, electrode and reaction writing in electrochemistry, and equilibrium in both cases.
6.Pay attention to cultivating the feeling of solving problems, as soon as you see the problem, you must find the right direction, don't think messily, and miss the time.
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1. First of all, we must eliminate the fear of chemistry and believe that there is nothing we can't do.
2. Think carefully about the topics you won't do and think about why you can't do them. You must know that there are actually only a few types of questions in the chemistry exam, and it is not difficult to learn those types if you understand those types.
3. Although it is a cliché, it is indeed a very effective method.
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Your separation is so high, it seems that you really want to learn well.
I'll give you a suggestion. Find the questions that were wrong and the questions that puzzled you before, and understand them one by one. Get to the bottom of it and take more notes. Slowly it got better.
This is my brother's experience
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Memorize more reactions, do more questions, OK
The most important thing is that you should be interested in chemistry, which I used to think was fun.
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I always say it well, I don't advocate the "sea tactics", but we also have to swim in the "lake of questions".
It's really good when you do more questions.
The topics should be divided into sections.
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Memorize all the equations in the book and the laws in the periodic table. That's it.
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I think you can be a little bit more macro when you do chemistry questions. The conditions in the question can be extended in all directions, you just need to choose the one that is relevant to the topic. First of all, we must have a basic idea, look at how the question is asked, and the path from which the problem wants to be solved.
Reasoning backwards and going back. Of course, the premise is that you are familiar with the equations and theorems.
If you don't have a good foundation, you can buy a copy of the exercises, don't be too difficult, do some basic questions first, and take your time. You still have time, don't put too much pressure on yourself.
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Well, how to say, although chemistry is a science subject, there are a lot of things to remember, I am now studying chemistry in college, I think it is better to read more books, read through the books, understand the basic concepts, memorize the periodic table, memorize some important reaction equations, practice the practice, and practice some calculation problems, so I think I should be able to learn well.
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Return to the textbook, memorize every word in the textbook, and figure out the details of each picture, and score more than 90 points.
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Of course, I am not a major that has anything to do with chemistry, but my grades from general studies in elementary school, natural science in junior high school, chemistry and biology in high school are all very good. When I was in high school, I was fortunate to win the first prize of the Zhejiang Chemistry Competition and the first prize of the Biology Competition.
First of all, I think chemistry is a comprehensive discipline in two aspects: on the one hand, we need to know the basic knowledge similar to the kind of classical Chinese that we used to learn, and we need to know the meaning and usage of most Chinese words. Otherwise, artificially inflating the workload;
Another aspect is the need to have the logical analysis ability of mathematics and physics: with the above foundation, it is necessary to have a framework to connect these foundations, and you can know the properties of each substance, imagine that you know the properties of each substance, then nothing is a problem (although it is an exaggeration to say "each", but the truth is this truth).
Although I know that what you are learning now must be much more complex than what I have learned in the past, the knowledge is close, the knowledge structure is the same, and any discipline from simple to complex processes can be cross-referenced and even interdependent. But no matter what, it's not good when you talk about fear, once you are afraid, no matter what good prescription there is, it won't work, because you can't absorb fear at all, you still have to overcome your psychology first, anyway, I used to do other homework and get tired, do chemistry to clear my mind. I wish you success.
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Preview the basics, review the questions carefully, answer the questions carefully, summarize in time, and find the cause of the error.
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Memorize tongue twisters ......Chemistry can only remember, there is no good way, tongue twisters, for example: hydrogen, helium, lithium, beryllium, boron, sulfur, aluminum, argon, potassium, calcium, ......
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Interest needs to be cultivated, interest comes, and learning anything is simple.
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First of all, you have to be interested and find chemistry interesting, so that you have the heart to study, or you must have a strong sense of purpose, get high scores, get into universities, and find a job. If you are interested, you should first memorize the smell and color of some substances. Interesting experiments.
Then memorize the periodic table, discover the laws of the periodic table yourself, and then write it down, even if the teacher does not ask for memorization. For example, the subgroup, chromium, manganese, iron, cobalt, nickel (these are magnetic metals). Platinum, gold, silver, and mercury are common in life and are often examined.
These. It is best to memorize the periodic table as shown below. Memorize according to similar rules.
Then those ion equations, memorize those to be removed and written, and then the trim is OK.
If you don't understand, you have to ask the teacher, otherwise the tuition will be paid in vain, and it will not be cost-effective if you don't ask the teacher miserably. No matter how simple it is, you must first exercise or develop the habit of asking the teacher. The knowledge points, the teacher knows best, and he must be better than the first student in the class.
Just like playing a game, of course, with the most senior players and the highest-level people, you will absorb the most experience. (*
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Chemistry comes from life. We should pay more attention to the physical and chemical properties of the surrounding substances, and combine what we have learned in class to explain some phenomena in life, which further consolidates our knowledge. In the laboratory class, pay more attention to thinking, ask questions and possible hypotheses, and then use experiments to prove them.
Pay attention to the phenomena that occur in the experiment. Finally, do the recording and analysis. In this way, it is not only an experiment, but also deepens your understanding and grasp of the experimental idea.
In normal review, you can only face the textbook table of contents, see a substance, and recall all the physical and chemical properties about it, as well as the experiments about it in class. When you have recalled, go back to the textbook and supplement it. To put it bluntly, chemistry is not in textbooks, but in your life and memory.
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Conservation of matter. Conservation of electrons. Conservation of protons. Just remember the basic nature.
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Chemistry should be practiced more, memorized more, studied according to the rules, and classified memory.
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Take notes, grasp the key points of the teacher's lesson, do more questions after class, make a small summary after each section, summarize the key points of this section, make a big summary in a chapter, use the form of a knowledge framework, and memorize the equations from time to time Understand the principle of reaction.
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Or just sign up for a class.,Fast.。。。
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Chemistry also has formulas, just like mathematics.
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