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The methods of learning physics and learning chemistry are different, physics is more flexible, and the components of understanding are larger.
Chemistry relies more on memorization than physics, and it is impossible to achieve what level you want to achieve in a day or two.
That's how I learned.
Before the teacher started the class (our teacher was very fast, and it was estimated that 1 paper would look like a quarter of an hour), I previewed and took notes by myself, and memorized the concepts and equations that I thought were more important in the book. It's definitely not enough to rely on the content of the book, you can take notes and try to memorize some materials (don't high school students have a lot of reference materials now, just find 2 more complete books) and the test points that you feel will be examined. (You don't need to do too much preview at a time, I guess you can do more at a time, and you're not interested, I started by doing 1 class, and then I did 1 unit at a time, and finally I can do it basically just by copying it once, and I can memorize it all in my heart, chemical equations are to understand memory, how to understand this, it seems that there is a special chapter in high school).
Finally, when the teacher talks about general problems, you can memorize the method, simple questions, if you make a mistake, remember to do it again according to the answer before the teacher explains.
Anyway, I don't deliberately memorize anything when I study chemistry, and if I get used to it, I can learn it well. There is no need to complain that there is no time to do pre-study, as long as it is well arranged, there is time.
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There is skill in memorizing chemistry.
First of all, the basic concept is that you have to memorize it, and you can't do it.
Then the chemical equation only needs to be memorized with some representative ones.
The rest is derived from the periodic law.
Also pay attention to the regular derivation equations for redox reactions.
As long as you are proficient, you will be fine.
Example: Utilize the periodic law.
Cl2 + H2O == HCl + HCl, then other halogens except F2 also follow the above formula.
br2 + h2o === hbro + hbri2 + h2o == hio + hi
In accordance with redox rules the HIO will disintegrate.
3 Hio === 2 Hi + HiO3F2 is extremely oxidizing so displace the oxygen in the water.
2 F2 + 2 H2O === 4 Hf + O2 Example : Using the redox law.
Hydrogen peroxide and chromium sulfate are known to react (alkaline environment).
h2o2 + cr2(so4)3 + koh === k2cro4 +
K2SO4 + H2O (no trim).
Derivation process:
Chromium sulfate (Cr + 3 valence) is reductive relative to hydrogen peroxide and is oxidized to CRO42-
Hydrogen peroxide itself is reduced to H2O
The koh then provides an alkaline environment where k ions and sulfates are combined into salts and chromates are combined into salts.
If in an acidic environment, it is Cr2O7 2- ion).
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Back to the reaction equation I used to do that.
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Chemistry in high school is actually still a little difficult, this subject is very cohesive, the foundation of junior high school is very important, if the foundation of junior high school is not good, then high school chemistry will be very difficult.
Moreover, there are a lot of knowledge points that must be memorized in this subject, and there are also a lot of knowledge that need to be expanded and understood by yourself.
There is a part of interest in the study of chemistry, because it is composed of experiments and theories, and the two are mutually reinforcing, and if you are not interested in the reaction between substances, it will also hinder the study of chemistry.
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For parents, children's education is the top priority, children in primary school does not learn much knowledge, so parents do not pay much attention, but in high school academic performance is very important, if you want to learn high school chemistry what are the suggestions? I think first of all, you must memorize the basic knowledge points. Secondly, we should do more test papers, learn to check and fill in the gaps, and in addition, we should study with people with good academic performance, and then I will explain to you in detail.
1.To learn chemistry, you must memorize the basic knowledge points.
When I was in high school, there was a classmate who had a very poor chemistry score, and he came to me and asked me how to study, and I later found out that he didn't even memorize the basic knowledge of chemistry, because some of the basic knowledge points in chemistry are chemical knowledge, and some are chemical formulas, if you don't know these things, chemistry can't be done at all, so these must be memorized, and you can only do the following things with these foundations. <>
2.Do more test papers and learn to check and fill in the gaps.
When I was in high school, our teachers often suggested that we do the test papers, because in the process of doing the chemistry test papers, we will see different types of questions, although we have mastered the formula of chemistry, but we may not really use it, we will see various applications of this formula in the process of doing the test paper. The more types we master, the more proficient we will be when we get to the actual exam, so we have to do more test papers when we have nothing to do, learn to check and fill in the gaps, and through the test papers, we can also find out which points we have not mastered well, and then go to re-study. <>
3.We should study with people who are good learners and hold each other accountable.
Learning chemistry is not easy, because in the process of learning, there will be psychological pressure, at this time we need a companion, in the process of learning with peers, we urge each other, can improve self-control, in addition, because both people have good academic performance, so two people can ask each other questions, can also share learning methods with each other, and answer a difficult question with each other, in the process both people can improve.
All in all, for children, the study of high school is particularly important, because high school is good, and the university is generally not very bad, for the study of high school chemistry, I think the first thing should be to master the knowledge, because these basic knowledge points, if you can't, there is no way to do the test papers, and then you have to do more test papers, and you will also check and fill in the gaps, and slowly supplement the knowledge points that you don't know, of course, you should also study with students with good academic performance, and everyone can solve problems with each other. Deepen your understanding of a certain question, and your academic performance is getting better and better.
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If you like liberal arts, you should choose history and politics, and if you like science, you should choose physics or physics, in short, don't choose chemistry.
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In class, you should follow the teacher's ideas, take good class notes, review the knowledge you have learned in time after class, ask the teacher in time if you don't know the questions, and sort out the wrong questions in the wrong question book.
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It is recommended to do more chemistry under the conditions possible, so that you can better understand some formulas in chemistry, do not memorize when learning, understand and apply flexibly, and need to improve your thinking ability.
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If you want to learn high school chemistry well, you must first learn the foundation well and lay a good foundation, and secondly, you need to brush more questions, remember more types of questions, and consolidate your knowledge by doing questions. I actually have a very thorough understanding of chemistry.
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