How to learn chemistry quickly! How to learn chemistry

There are very few junior high school chemistry classes!

First of all, memorize, to be honest, junior high school chemistry is similar to liberal arts, more memorization has a role, such as element symbols, you have to be able to write, you have to memorize the top 20 of the periodic table, some typical equations have to be memorized (the text appears in the text), relative atomic mass or something has to be remembered, and valence.

Then, review chapter by chapter, find the topic of the chapter, understand the core content, and soon! Like valence, acid-base neutralization reaction, the four major reaction modes (decomposition, compounding, displacement, and compounding), you can only learn chemistry in high school chemistry!

Junior high school chemistry, hehe, when our teacher was in class on the first day, he said, I don't need extracurricular books, and I don't need to do questions, and when class comes, I basically will, and the result is that in the high school entrance examination, 50 points out of 50, half of the people have passed 48 points!

If you still have a month, let's do a knowledge sorting out first, using chemical equations as the skeleton; Because every chemical equation is a collection of knowledge, first understand the physical properties and chemical properties of reactants and products (many simple fill-in-the-blank choices come from here), then remember reaction phenomena, such as the production of gases, color changes, etc. (this is some slightly more difficult analytical fill-in-the-blank and selection), and then there is the embodiment of conservation of matter: the sum of the molecular weights of reactants is equal to the sum of the molecular weights of the products (which involves the calculation problem), plus some bits and pieces of knowledge, If you have a good foundation in mathematics, you may wish to use mathematical ideas when solving chemical calculation problems (for example, give you a graph of the number of reactants and products, the straight line represents a constant rate, that is, one reaction, and the broken line represents multiple reactions, it is possible to change 2 to 1, or 1 to 1; ）。In this way, there should be a breakthrough in your chemistry scores, and your future knowledge may as well be built according to this system.

Finally, the chemical equation is the core.

I can't remember exactly when I was in junior high school, but if I studied quickly, I was in the top 20 of the periodic table, probably, I had to memorize it. Important chemical reaction equations must be remembered to put the ionic valency of important elements and write the ionic formula according to the valency. These are the basics, and then the experiments in the book, especially those that are often examined, experimental phenomena, steps, device connections, and so on.

There are still a lot of knowledge points and trivial things in chemistry. The knowledge in the book is almost the same, so let's do more questions for the mock papers and real questions of the high school entrance examination. In particular, the basic part of the previous paper is reviewed in a targeted manner for the parts that are easy to appear in the paper.

Let me tell you first, I am also in the third year of junior high school, if you want to learn chemistry well, you must first lay a good foundation, and you must understand the nine, especially the chemical equations, and then start those to remove impurities and purify.

1. Clarify the purpose of learning chemistry.

Chemistry is a natural science, is a compulsory course in middle school, it is the achievements of chemical science research and practice of countless chemists at home and abroad in ancient and modern times, with rich knowledge of basic concepts of chemistry, basic theories, knowledge of elemental compounds, basic types of chemical reactions, classification of inorganic substances and their relationships with each other.

2. Preview before class.

The day before class, be sure to take time to consciously preview what the teacher will talk about the next day. Learn how to study first and listen to lectures later.

3. Listen to every class.

Listening to lectures is an important part of the learning process and the main way to learn and master knowledge. Whether you can master the knowledge learned well in the classroom is the key to determining the learning effect.

Chemistry: Mainly to memorize some properties, write equations, etc. Textual things, you can take a look at it and memorize it.

The key to theoretical things is to understand, and if you understand it, you will be able to draw inferences from one another. For example, in a chemical equation, in order to write a correct chemical equation, you must first write the chemical formula of each reactant and product, and in order to write the correct chemical formula, you must understand the valency. If you just rely on rote memorization, it is still easy to forget when it comes to the exam, and understanding is the most important thing.

So you have to memorize more practice questions, such as multiple-choice questions, the teacher gives you some special properties to choose, so more practice can invisibly help you remember. The effect of light memory is not good. The more you practice the nature of those special substances, the more you will remember.

The big topic is reasoning, writing equations, and with a good foundation, you will not be afraid.

In short, it is a process of accumulation, the more you know, the better you learn, so memorize more and choose your own method. Good luck with your studies!

The most important thing is to cultivate your own interests.

Chemistry needs to be memorized, and at the beginning it needs to be memorized, and when it is memorized, it will be done, and it will slowly turn to comprehension memory and comparative memory.

Read more books, summarize more, and do more questions.

Preview the basics, identify the concepts, carefully review the questions, answer the questions carefully, summarize in time, and find the cause of the error.

Directly gnaw through the books of high 2 It is best to have some college entrance examination questions (mainly fill-in-the-blank questions) when gnawing books, and the fill-in-the-blank questions are mainly to test the knowledge of high 2 high 3You can read the book of high school 1 a few times and you can get it right, organic chemistry must be done well, because it is very simple and easy to take.

If you want to get a high score, in September-November, you can directly gnaw on the 2 books of high school, don't care about anything, do 5-7 sets of college entrance examination questions from November to the final exam of the first semester (don't have more, you won't digest more, don't be efficient now, you want to be correct, you can't go to the book, don't be lazy), go to buy a set of gold exam papers (white) do a few sets of them, make sure not to forget the first semester review, the second semester starts, and a set of time for a set of comprehensive studies every week should be recorded on the paper (to ensure the accuracy rate) until mid-April And then it's the same from mid-April to May, but now it's about efficiency, that is, there are two sets of papers, and in the time from May to the college entrance examination, what you have to do is to gnaw on the papers you have done (all the papers) and forget them, so you go to read the books, or ask the teacher, and stick to the college entrance examination, and you will find that you are very strong (remember to read the books of high school 1 and high school 3 in this semester).

For the problem of the equation you say, in fact, you don't need to memorize the phrase "conservation of atoms", you must have a deep understanding of the method in the book when leveling the redox equation, which is simple, fast, and convenient; In fact, you will know if you have done a lot of questions... If you don't want to do the question, then read the book all the time, 10,000 times, but you have to read the book, the book is the key.

Review the content of the first year of high school Look at the periodic table Do you know all the laws? Is the law of bevel left or right? A simple test of your own review is to write down the elements of the main family, to describe the commonalities of each main family, and to remember the characteristics of the elements, such as the displacement reaction of f and o, and to see that the element is more lively, and so on.

Review high 2 content is the most important balance all kinds of balance and organic remember a few bases of chemical reactions can be used to test your review effect is to make the score of the paper.

Review the content of high 3 that is, the first two chapters are the most important, and the last one should be read.

There is also the industrial reaction of the iron triangle and the aluminum triangle ......These 3 must have a 16-point look.

Okay, it's nothing, I wish you success in your studies!!

You say the direction of study I said above Chemistry can really not be memorized to experience the joy of learning chemistry You will find that chemistry is so simple In high school, it was mainly to gnaw the books of high school 2 Experiments Just remember the method All the results are the reason for the method!!

It doesn't matter, the small college entrance examination is very easy to pass, C can read book A, you mainly look at the basic knowledge, chemical equations. You don't need to read reference books, just grab the textbook. Go through the textbook before the exam.

Little college entrance examination! Memorize a little more equations! Take a look at the key elements chapters! Take a look at the examples! Practice more!

Endorse more, and the basic knowledge on the book accounts for the vast majority. I just should memorize a lot, so I got a perfect score in chemistry in the college entrance examination.

1. First of all, we must be familiar with the textbook, the chemical substances mentioned in the textbook are very representative, we must remember its physical and chemical properties, and remember what kind of substance and chemical properties it is. The test is generally not too far from the textbook, but the test is a different substance of the same category with the same properties as the substance mentioned in the textbook, and the properties of the same category of matter are very close to each other and can be found in the law. So textbooks are the foundation.

2. Do some relevant exercises, and summarize the exercises you have done, mainly summarizing what knowledge points are tested in the exercises, and in what form this knowledge point will be tested in the future, etc.

Read the textbook several times, do more practice questions after the textbook and the questions explained in the exam, and then do the analysis of the materials and more analysis of the example questions.