Now I m in my second year of high school, but I haven t laid a solid foundation in chemistry in my f

I think the first thing is to be familiar with the context of the textbook, know the general content of each chapter of the textbook, and then focus on reviewing the key knowledge of the key chapters, and master the knowledge points proficiently, especially the equations, some important experimental processes and common chemical substance testing methods, some classic experimental operations, some good problem solving methods, and memorizing some classic question types of example questions are of great help to your future problem solving, I think these are very important. However, mastering these only means that you have mastered scattered knowledge points, and I think the most important thing is the final review, that is, to combine the knowledge that has been mastered in the textbook into a network, so that you can use the knowledge more proficiently and solve the problem easily. Good luck with your studies!

It is necessary to construct the knowledge context, and I think it is more important to form the concept of multiple problems and one solution, such as memorizing equations: according to the concept, the classification of substances, the type of reaction, and the valency; For example, acidic oxide + alkali = salt + water (SO2, CO2, SO3, SiO2) amphoteric oxide Al2O3 reaction with acid and alkali can also be applied; Basic oxide + water = alkali, Na2O2 and Na2O "over" can be understood as "more";

Na2O2 + water = alkali + oxygen, "more" is released in the form of oxygen, etc.; The periodic table and valency must be remembered to understand and memorize, and experimental instruments and drugs need to be memorized, and the operation is reasonable and close to life to understand. According to one point, the period gives an inspiration.

Look at the notebook more, do some type questions appropriately (preferably with a detailed analysis and summary of the rules and methods of the type questions), take a good look at the textbook when you have time, the textbook is the foundation, any exam questions are the content or extension of the textbook, if it is an experiment, look at the experiment**, remember that the process is the main thing. As long as you are serious, you can learn anything, so do it well!

Take out the books from the first year of high school, and then do all the post-class questions. Do every question. I won't read. After reading it, continue to do the questions.

Take the time to read the chemistry textbook of the first year of high school, read it again and again if you don't understand it, and at the same time do some questions to consolidate, and practice more to the foundation, of course, the textbook is the most basic, and the basic principles must be clear. Hope that helps.

In your spare time, read more chemistry textbooks, the basic knowledge in the textbooks can help you better understand what you are learning now.

I've been in a similar situation too, no.

I didn't come back after that. I'll put my thoughts on it, no version will definitely suit you, right, but I think it may be able to help you somewhat.

Generally speaking, chemistry in the first year of high school is all basic knowledge points, so you will feel struggling to do the questions now. Simply memorizing equations is not a very good way, you can't understand it, and you don't have ideas in your brain, which will only make you more and more confused. I suggest that you take a look at the textbook first, and it is best to find a book for the general review of the third year of high school, which should be a summary of the knowledge points with a more systematic system, and read the textbook against the summary, and understand while remembering.

In addition, you must do the questions, if you don't do the questions, you will never be able to master the knowledge points. You can choose the simple representative ones to do first, from easy to difficult, and slowly accumulate. I think you can do some real college entrance examination questions, in fact, the college entrance examination questions are not necessarily more difficult than the usual questions, and the college entrance examination questions are more rigorous, and they are comfortable to do, and there will be some confused things to fool people.

In short, high school chemistry is not as difficult as you think. The key is to clarify your thinking, do more questions (to put it bluntly, there are only a few types of questions and knowledge points in the college entrance examination), communicate with the teacher more, and I believe there will be no problems.

When I was a tutor, I was exposed to high school chemistry courses, especially freshman chemistry. Since the span with junior high school chemistry is a bit large, it may be difficult to learn.

Memorizing chemical equations is fundamental, and you must be proficient in writing. While memorizing the equations, it is recommended to master some typical experimental phenomena, such as precipitation, discoloration, gas formation, etc. Not only will there be multiple-choice questions, but you may also see experimental questions that you may have a headache about.

When I was in high school, I felt that there were probably several difficult points in high school chemistry: chemical equilibrium (including ion balance, hydrolysis or something (I don't know if there is still one)), ionic reactions of metals, galvanic cell electrolytic cells, and organic chemistry (there is generally a big question about organic matter in the college entrance examination, which is more troublesome).

First of all, chemical balance is my headache, troublesome to death, so pay attention to the regularity when taking notes, and some principles should not just be written down in the notebook, for example, there is a Lechattle principle here, which needs to be paid attention to by the landlord.

There are many metal reactions, probably including Fe triangle and Al triangle, Fe triangle is several redox reactions, and Al triangle often calculates because of its amphotericity.

The galvanic battery electrolytic cell is not much to worry about, it is all regular, find the positive and negative electrodes (electrolytic cell anode and cathode), and master the redox trim law is OK. And in the exam, I found that the teacher should be able to summarize those few common exams.

There is also a high one, the amount of possible matter, that block will be more difficult, because there are more formulas, just grasp the core laws, pay attention to conversion, other long and long derivative formulas, I think it is okay not to remember. The core law: in addition to m=m*n, n v=c, it is a proportional relationship, for example, in a compound Fe2(SO4)3, the concentration of Fe2+ ions is 2mol L, and the concentration of sulfate is 3mol L.

This is the most basic proportional relationship, so understand it well.

I'm also in my second year of high school now, and I think so, since chemistry is a liberal arts subject in science, it must be memorized.

There are more specializations, and this requires a certain amount of hard work to see more. But simply memorize and don't know how to use it, it's also a bamboo basket to draw water--- but don't worry, chemistry is relatively easy to learn, usually you have to learn to summarize, that is, when you are learning new knowledge, you should also review the first year of high school from time to time, and slowly make up for what you don't understand. If you don't understand, you have to work harder.

For example, who reflects with whom and then how the phenomenon is" I have also confused this question, prepare a notebook and write it down (using different colors will add fun). I read it every day, or if I don't understand it, I read it. When writing notebooks and wrong question books, if you find that you always make mistakes in the same question, you should pay more attention, don't make too messy notes, try to remember the connections together, so that you can remember faster and better, if possible, use drawing to remember better!

Have faith in yourself Come on!!

Chemical back is a must, though.

Yes, it is also important to understand the law

Chemical equations must be proficient, but not memorized, the basic knowledge must be firm, the textbook must be put first, and the textbook must be thoroughly understood first.

You must do more questions, summarize more, and be sure to do them yourself. Summarize the rules of notes and mistakes should be focused

Mistakes must be written down honestly. Don't see the mistake, think the question is very simple, just think that you will not be wrong next time do not write, this is very unscientific

In fact, notes and wrong writing are not a problem, I personally think the most important thing should be to read more, read repeatedly, if you can ensure that there are no more problems with what you missed and what you have said, then you can learn quite well

I'm a prospective senior in high school, and I hope my thoughts will be helpful to you I wish you progress in your studies

I didn't study well in high school.,I was a little enlightened when I finally reviewed.,In the end, I also studied chemistry in college.。。。 My advice is not to give up, you will always make progress if you read a little more, there may be some resistance, you don't want to read chemistry when you see it, you have to find the following topics that you are best at doing, if the correct rate is high, you will increase your confidence, and then you will be willing to look at other topics. In this way, step by step, you can get better, the key is to ask yourself to watch it with peace of mind at the beginning, otherwise you don't want to watch it all the time, and you can't do it!

The first step is to be interested, interest is the best teacher, only with interest, will you devote yourself to learning and answering.

The second step is to master the basic knowledge and basic concepts of chemistry and write them down on the basis of understanding.

The third step is to listen carefully in class, take good notes, read more example questions in the textbook, and find out the learning methods and rules.

The fourth step is to do more questions, and think about and summarize after completing the questions.

Senior high school chemistry includes elemental knowledge, organic chemistry and some basic concepts, which is an extension of junior high school chemistry, which pays more attention to the rigor of thinking and reasoning, and the understanding and application of concepts.

I remember that I used to be in junior high school.

It's not good to copy the school, but now I have concluded that I should do more questions, especially if you can't do it, you have to listen carefully to the old dao

The teacher said, practice repeatedly, this is how I learned chemistry in the third year of junior high school, I am now going to be the second year of high school, chemistry is not bad, just use this method, and there is also to be interested, simply memorizing things will definitely not work,

To learn chemistry, you only need to memorize all the small knowledge points in the book. Keep in mind the basic characteristics of each element. Then it is completely sufficient for you to cope with the general college entrance examination.

You take your time to accumulate chemistry little by little, it's not difficult to memorize more, I wish you progress in your studies!

High school chemistry memory equations are only a small part, and the learning of high school chemistry theory is particularly important. High school chemistry must be learned on the basis of understanding. If you have too much knowledge in the first year of high school, you must ask the teacher to tutor and catch up as soon as possible in order to successfully complete the following studies.

The chemistry formula of the first year of high school is very important, you must start from the basics, it is recommended that you re-read the chemistry book of the first year of high school and do a little practice.

It is basic to memorize chemical equations, be familiar with the properties of substances, and memorize reaction phenomena.

Find a tutor to tutor and it is estimated that you can make it up in 3 months after studying hard!

Come to my Baidu space, Mr. Liu Tingge's chemistry class.

Memorize by rote first, and then understand memory after you have a foundation.