In the third year of junior high school, I understood physical chemistry and did the questions, but

First of all, your attitude is worth affirming, on the one hand, you have to learn the ins and outs of knowledge, learn how it came about, how it should be used, and the interconnection between the knowledge points, so as to achieve the real will, on the other hand, pay attention to the summary, science things, thinking and methods are more important than the knowledge points themselves, the purpose of doing questions is to improve thinking, refine methods, not to do questions for the sake of doing questions, and moreover, there is a good way, that is, to tell others the topics you have done, you can tell your classmates, You can also tell parents, if you can explain a problem, it means that you really understand. These things are more active methods, if you can't do them, then you can only use passive methods, that is, repeated review and repetition.

If you understand, you won't forget, and if you forget, it means that your understanding is not thorough enough, you just need to ensure enough sleep and do more questions to consolidate your memory.

First of all. You first know what you don't know about physical chemistry. Focus on finding out what you don't know. Then ask the teacher or classmates.

And then. Put down the content of the meeting first. Don't keep repeating the same question. Let's start with the easy questions. And then. Maintain a good mindset. Hold on to every door. Don't be biased.

At last. Don't put too much pressure on yourself. Everything was in time. Hurry. Just believe in yourself.

You are one step away, review the questions you have done, don't memorize the questions, do each question must know what knowledge you are testing, so that you can do it, understand the basic concepts more, and then look at the questions. Occasionally sit for a new question.

Or do more questions and summarize the type of questions. Strengthens memory.

You can do the questions with just a general formula, and this is the case in chemistry and physics, just remember the minutes every day, and that's it.

Mathematics: There are two main points to learn mathematics well, one is to be interested, patient, and able to calm down to study, and the second is to practice more, because the main question types are only those, and the exam is just variables, so only do more questions, master skills, and then draw inferences from one another, practice more question types, so that the results can be improved.

Another point, this is a habit I have developed since childhood, and you can also try it, that is, make a mistake book, read it often before the exam, and warn yourself not to make this kind of mistake in the exam, so as to avoid mistakes and avoid losing points. Although this may be a little late for you, it will also be very helpful for you later in the future. If you don't understand something, I'll give you an answer when I'm free.

I don't remember physics very well, after all, high school and junior high school are not the same.

Chemistry, to be honest, my classmates are all back-to-back! The result is more than 90 points! If there is an inference problem, I recommend that you read the conditions and write them next to the diagram before doing them.

Hope it helps! Pre-dwelling for the high school entrance examination successful!

Alas, there are so many months left for the high school entrance examination, what are you worried about?

Math is not difficult. If you're afraid of math, overcome the difficulties first and then find some problems to do. In short, math is bad, it's just that you don't know many ways to solve problems, that's all.

If mathematics is good, there is a sense of number, and many problems in physics are changed letters, numerical mathematics, mathematics and physics are connected.

Chemistry in junior high school is mostly backrested, but it may not be possible in high school. For you, what needs to be tackled is to find a good memorization mantra.

It's okay if your IQ is not high, as long as you have a heart that wants to learn, you will be able to succeed!

You can experience it first-hand in the senior year as well.

It doesn't seem possible, but the devil must be trained, and maybe it's possible.

In fact, as long as you can be ruthless, it's okay, but you may have to make up for it from the first and second years of junior high school.

Practice taking cram schools and focus on conquering!

Hello. Writing physics is bound to run into tricky problems. The third stage of junior high school is very important. But don't put pressure on yourself. If you're feeling stressed right now. You have to find a way to relax.

I'm a freshman in high school. We were all poor at physics in our class. Basically, they all fail. Everyone's learning approach is different. The mentality is also different. Try to relax. Don't be stressed. You have to give yourself an idea. You're amazing.

I don't even take notes in class. The important thing is to learn the method. Physical and biological history are different.

Can't be rote remembered. All I remember is the formula. The variant is completely deducible.

Don't feel that there are many formulas. Hard to remember. Actually, you think about it.

It all makes sense. For example, vt=v0+at.

a is the acceleration (the amount of velocity that changes per second) multiplied by time. It's just how much has changed. Together with the original initial velocity v0, the final velocity vt.

It's all about understanding. Then there is the correctness of the solution. Don't just feel that physics is hard.

Discover what's interesting in it. The people around you actually feel the same way you do. Always tell yourself to calm down and think slowly.

You've got a lot of time. Don't be overwhelmed by the time. This is very detrimental to the disintegration.

One last point. Don't ask the teacher for the answer as soon as you don't know it. That doesn't just create dependencies.

That's when you're really getting dumber.

Physical chemistry in junior high school is just getting started and must be learned, otherwise when you go to high school, you will regret being greedy for fun, and now you are only facing the high school entrance examination for a little more than a semester, what you can do now is to figure out which chapters of physical chemistry you haven't understood, and then focus on those chapters, each break, don't know how to ask, don't pretend to understand. After building more questions like this, you will realize that physical chemistry is not difficult, but you didn't work hard enough. I hope these words can be helpful to you and I wish you success!

In physics, we should find more questions to practice, memorize formulas and conclusions, and memorize more equations in chemistry.

Persistence is required, and only those with perseverance will succeed.

Clarify the basic concepts and familiarize yourself with where they come from and how they relate to each other.

It is necessary to do some questions independently, with quality and quantity. There should be a certain number of questions, not too many, not too few, but also a certain quality, that is, a certain degree of difficulty. Anyone who learns mathematics, physics and chemistry will not be able to learn well without going through this level.

Solving problems independently, sometimes slowly, sometimes detours, sometimes even unable to solve them, but these are normal and the only way for any beginner to succeed.

It is necessary to be clear about the physical process, and there is inevitably a hidden danger of solving the problem if the physical process is not clear. Regardless of the difficulty of the topic, you should draw as much as possible, some sketches are sufficient, and some should be precise to show the geometric relationship. Drawing can transform abstract thinking into figurative thinking and grasp physical processes more precisely.

With graphs, state analysis is fixed, dead, and intermittent, while dynamic analysis is alive and continuous.

Study materials should be well preserved, classified, and marked. The study materials are categorized into practice questions, test papers, lab reports, and more. Marking means, for example, for practice questions, that the general questions are not marked, and the good questions, valuable questions, and error-prone questions are marked differently for future reading, and marking can save a lot of time.

It is necessary to attach importance to the knowledge structure and systematically grasp the knowledge structure, so that the scattered knowledge can be systematized. It is as large as the knowledge structure of the whole physics, as small as the knowledge structure of mechanics, and even down to the chapters, such as the knowledge structure of statics, and so on.

First, read the book first, sort out the knowledge network, analyze the major and difficult points of each unit, and find out your own shortcomings.

2. Ask the teacher for help and solve difficult problems.

3. On the premise of understanding, do the questions to consolidate.

Do more exercises, read carefully, it's up to you.

First familiarize yourself with the textbook, and then do more supporting exercises, and you will gain from sticking to it for a long time.

The most effective way is to question the sea of tactics, memorize more and memorize more, practice makes perfect.

naoh+hcl=nacl+h2o

The molecular weight of NaOH is 40 HCl.

Equal mass and equal mass fraction, indicating that the mass of NaOH in the burning solution and the mass of HCl in the hydrochloric acid solution are equal, and due to the molecular weight relationship, then the HCl is excessive.

Therefore, the solutes in the solution after the reaction include: NaCl formed by the reaction and excess HCl

Equal mass and equal mass fraction, meaning solutes of equal mass that react with each other. But one serving of HCL consumes more than one serving of NaOH. That is, an excess of HCl. So the solutes in the resulting solution are NaCl and HCl

1. English and Mathematics, prepare in advance.

2. You can buy: Beijing Education Publishing House's "Basic Knowledge Manual" and other basic teaching aids, only one set. You don't have to buy a lot of them, just keep them simple and practical.

3. You can go online in advance to read some of the past high school entrance examination papers and the outline of the high school entrance examination exam. Enter the test-taking state early. Be confident.

Three from one big - everything from the difficulty, all strict, everything from the actual combat, large amount of training.

4. Chinese and English grammar should be mastered. Grammatical backbones such as subject-verb-object-definite complements, infinitives, clauses, direct and indirect speeches should go deep into the bone marrow. Regular phrases and common phrases must be memorized, and new words can be memorized from time to time every day.

5. In the formulas of mathematics, theorems and inferences other than axioms must be deduced by themselves. Homework should be completed quickly and correctly. It is necessary to know what it is and why it is so.

6. The questions of the high school entrance examination are derived from the textbooks, which are difficult to use the textbooks, and more than 70% are basic and intermediate questions, and the textbooks are the top priority.

7. Middle school English and mathematics are important basic courses for most practical and difficult majors, which are crucial for choosing a major in the future. It is a discipline that plays a strategic core role.

Remember a sentence: everything is not as good as its sect, first sort out the exam syllabus, set feasible goals, use the method of Tian Ji horse racing to deal with the exam, eat meat first and then gnaw bones. Usually, you can watch more of the Battle of Julu or the Battle of Sarhu, and I will only go all the way with him.

This is how you can focus.

The heart can't calm down, one way: refer to Xiang Yu, the overlord of Western Chu, who broke the cauldron and sunk the boat, and won nine battles and nine victories. Capture and kill 400,000 Qin troops.

Wu Shengyi is absolutely Guan Yu, warm wine beheads Huaxiong, beheads Yan Liang, and punishes Wen Chou. Pass five levels and kill six generals. Treat exams as if they were a war.

Use momentum to replace the buoyancy and dryness.

Junior high school physics: sound, light, electricity, force, and heat.

There is no continuity or overlap in the knowledge taught in the second and third years of junior high school. Take the people's education version as an example: the second year of junior high school will talk about three parts: sound, light, and force. In the third year of junior high school, heat and electricity will be taught.

The third year of junior high school: Talk about new knowledge, it has nothing to do with the second year of junior high school, you will usher in a new beginning. As long as you can correct your attitude, work hard, and pay attention to the sorting of key question types (wrong question book), then you can improve

A general review will be conducted to re-learn the knowledge of the second and third years of junior high school. If you do well in the third year of junior high school, you will have plenty of time to review the second year of junior high school and catch up with the knowledge of the second year of junior high school.

Pure hand hitting, looking.