I reviewed my senior year of high school. My chemistry is going down so fast. Please give me some ad

The habit of doing questions is not good, he must not have read the 4 options, as soon as he saw the answer he thought was right, he immediately chosen, so it is easy to make mistakes, after all, the examination may be wrong, see the missing words, read too many words, knowledge loopholes, etc., may lead to mistakes.

If you read the 4 options, you can use the elimination method, and even if you have doubts, you can choose the most likely answer, which greatly improves the accuracy of the question.

Also, every time you exclude an option, you should play after that option so that you don't make mistakes.

What does it mean if you are not careful, and the result that should have been chosen correctly is still missing.

If you get it wrong, it's possible that you're doing it too fast, and you can adjust the speed of doing it, and you're about 1 to 2 minutes on average, and it's not good if it's fast, it's not good.

In addition, if you have time, you should do 50 to 60 multiple-choice questions a day.

If you don't have enough time, make sure to do 30 questions, about 30 to 60 minutes, and you should be fine.

There are also people who read the wrong questions because they have done too many questions, and when they see a slightly similar question, they think that they have done it, which leads to preconceived ideas, and if this is the case, every time they do the question, it should be the first time.

Almost everyone makes a mistake, so tell yourself to be careful before doing a question every time!

lz, don't panic first, just the third year of high school is a little unaccustomed to the third year of high school is a process of consolidation Actually, I think chemistry is very good to guess the test point of the questioner... After doing too many questions, you will naturally find some commonalities The problems exposed now are all good things, and you can know that you are not good It is recommended that you make a wrong note, if your chemistry basic notes are good, it will not take up a lot of your time, but it can help you systematically recognize your chemistry problems You should also be serious about reviewing the questions Calm down Take your time, you will improve Brother Wa has just entered the third year of high school this year, I hope you will do well in the college entrance examination next year Come on

Don't rely too much on the answers.

Think for yourself first.

It's okay to discuss it with your classmates.

After answering the answers, summarize the knowledge points that you have neglected and do not know.

It's okay to look at it more and look at it before the exam.

Also, before the exam, remind yourself to review the questions carefully several times and so on.

Think about the troubles you are prone to.

Try to avoid it. Don't be too relaxed, or the usual problems will come out.

There is a process of improvement in the overall level.

It's okay, it's going to get okay slowly.

Do the questions quickly, but also accurately. Therefore, the examination of the topic is very important.

1.Have a positive attitude, don't let go of every detail, and pay attention to the traps.

2.For the questions that you can't do, expand the knowledge taught by the teacher and draw inferences from one another. Information questions pay attention to the essence of the high starting point and low falling point. Those who have solid kung fu should be confident and careful.

3.For the questions that you would have done incorrectly, pay attention to consciously check the points that are easy to make mistakes when doing the questions, and at the same time remember the questions that the teacher usually talks about that are easy to make mistakes.

In addition, there are several things that must be done regarding the improvement of problem-solving skills.

1.If you are not sure about yourself, you should take notes diligently, summarize the system knowledge and your weak links. Especially the method of doing questions, if you stick to taking notes for a long time, it is a magic weapon before the test, and it is unique to yourself!

2.Communicate with your teachers. In fact, the teacher knows everything, but it is impossible for every student to analyze them one by one, and the students should actively communicate with the teacher.

3.Communicate with your classmates and learn from each other's experiences.

I have found the most useful experience in many years and hope to help you.

First read the correct question, and then recall the knowledge points according to the meaning of the question, so that it is not easy to make mistakes.

Do more, and if you are deceived more, you will have a long memory.

Don't be overly nervous, the college entrance examination is nothing, I just finished the exam, look at it now, it's nothing.

Look at the questions slowly and do them quickly.

Be careful, be serious, focus Chemistry is the best way to get points.

Thanks for the invite! The further you go to school, it is normal for your grades to slip, so the first step should be to adjust your mindset and balance your mindset. Understand that anxiety won't solve the problem.

After adjusting the mentality, make a specific and detailed analysis. Is it because you don't have enough time to answer the questions or you haven't mastered the knowledge points? If you don't have enough time, then do more mock questions and past past questions to adjust, control the time, plan the time of each big question, and strive to improve your answering speed.

If it is a question of mastering knowledge points, then check each piece of the exam syllabus, sort out the knowledge points, and find out your comfort zone, Zen hail first learning area and panic zone.

The so-called comfort zone is the knowledge points with high accuracy of doing the questions by yourself, and the knowledge points in the general comfort zone can be integrated, no matter how flexible the topic is, you can also find the relevant places to solve the problem. In other words, if you are given a point, you can connect them into a line and create a surface that can solve similar problems in one fell swoop.

The so-called learning area, those knowledge points can sometimes be done correctly, sometimes not right, the knowledge points are half-understood, such questions, it is worth pondering, summarizing, and striving to improve the accuracy.

After solving the problems in the study area, find a way to expand the study area, and try to solve the problems in the panic area at the edge of the study area.

It is necessary to clear the learning area of chemistry knowledge, and to effectively improve the performance is to expand the scope of the comfort zone and reduce the scope of the learning area.

If you are short of study time and you really can't figure it out, try to find the type of question that you are prone to make mistakes, and then find a similar type of question in the mock questions and past past questions.

If you want to get the effect of brushing the questions, you must figure out why the questions you have brushed are doing this, why you are wrong, dazzling or knowledge points? If it is a knowledge point, then go to the textbook, turn the explanation, until you understand, don't be afraid to turn the textbook, turn the explanation and waste time, this is the sharpening of the knife and not the mistake of chopping wood, is the most effective way to solve the gap in the gap.

If the economic conditions of the family are good, you can ask the relevant teachers for one-on-one tutoring after finding out your own problems, after all, the third year of high school, the study time is relatively tight, and there will be a big difference in time between someone to guide and ponder by yourself.

Finally, I wish you progress and get into your dream school!

Like you, I didn't know anything about chemistry in my junior year of high school, but I also learned chemistry well in my third year of high school, and then I was admitted to the chemistry normal major of the university newspaper, and now I should be in my senior year. First of all, you need to have the confidence to learn chemistry well, because compared to mathematics and physics, chemistry is the easiest.

1.Chemistry belongs to the combination of arts and sciences, both requires memory and understanding, you have to calm down and read the book chapter by chapter, the book is the foundation, it is the "sect" that does not deviate from its sect, you don't want to see others keep doing the question, you blindly follow it, the more you do it, the more confidence you have, the more you don't. Therefore, you must at least do the knowledge and questions in the book before you can do the exercises.

2.I know that if the teacher leaves the paper, he will say that if you don't do it, the teacher may be criticized for checking the homework, so you should go to the teacher after class and let the teacher find a way for you, maybe the teacher will give you the privilege to hand in the homework after reading the book. Don't alienate the teacher, every teacher will not refuse a motivated student.

3.It's a holiday, I hope you can grasp yourself, be more conscious, stay away from the TV and computer, and devote yourself to studying, I think a vacation is enough to read the high school chemistry book again, pay attention to the first book to read, if you don't know at all, it's best to get the junior high school book back and take a good look.

We must remember that "everything changes are inseparable", and you can't blindly do the questions, and the confidence in doing the questions will be higher and higher if you understand the book.

If you want to study well, you must grasp this summer vacation, because the college entrance examination is not a joke, and repeating it is very painful.

High school chemistry is actually not difficult to learn, mainly because the memory stuff is more miscellaneous. The key to learning chemistry well is to clarify the knowledge points learned and express them in the paper. For this, you can first list your weaker links and then focus on reading books and doing questions for these places to break through, but you must understand, don't ask the teacher, the teacher will not be annoying.

Also, because of the miscellaneous knowledge points, you have to make certain notes when you read books and do questions (I mean all the chemistry questions you did in your third year of high school, including your own, the teacher's, and the monthly exam, but you have to do what you can, just the right amount, because other classes also take time), mainly because you have to work hard to understand, these notes are best read once a week, you think, there are more than 40 weeks to take the college entrance examination, can you not understand what you don't know more than 40 times?

Mine, you can add me, tell you specifically.

Actually, it's not that hard. Just understand the book and do a few questions in high school.

Do more questions, such as mock questions, real questions, etc.

Chemistry is a liberal arts in science, and it is enough to accumulate more knowledge points, so take all the knowledge points over the same time, and then do the corresponding questions to consolidate it.

My favorite thing is chemistry, and I hope some of my experience will be useful to you:

First of all, you have to try to fall in love with the subject, and you will never get a grade.

Then, you have to memorize more laws and equations (especially those commonly used in experiments). To put it bluntly, chemistry is the best subject to learn in science, and there is not as much to understand as mathematics and physics. Therefore, it is very important to memorize and memorize more.

Finally, do more questions, summarize the questions with high frequency by yourself, find classic question types and copy them to the accumulation book, you really can't ask the teacher, be diligent and fast, it is good for yourself. Moreover, these can't be three-minute heat, a good habit takes 21 days to develop, and it only takes 2 days to destroy, which is more important, you have to grasp it yourself, in short, you have to stick to it.

In addition to these, I think it's important to maintain an optimistic attitude, don't feel that you can't learn this subject because of an exam, and the mentality of becoming a big fat person in one bite must be eliminated in high school! Step by step, it will eventually lead to positive results

I'm also a senior in high school, and my peers can better understand your psychology.

You first memorize the periodic table.

Then remember the properties of several major elements.

Some of the compounds commonly used in the problem must be memorized for their properties.

You need to understand some basic concepts, such as redox.

You have to be able to balance equations.

Alas, I can't even remember, I'm old.

Chemistry is the easiest of the science subjects.

You need to read books often and develop your interest.

Also, it is important to listen to the teacher, if necessary, you can ask the teacher or the classmates who are better at learning.

I hope you will succeed in your college entrance examination this year.

Cultivate your interest first. Find out what to love from it.

It is to memorize the chemical reaction formula of the periodic table.

It's best to have your own time, study it with your head down, and restore it to the textbook according to the textbook - notes - practice - notes - practice this program, and only by working steadily can it be effective. If there is no holiday, it is easy to fall behind more if the teacher does not listen to the class. Therefore, if you want to listen, you need to squeeze out more time for review.

Let's catch up and overtake in a solid way. If you don't understand, ask the teacher in time and ask the teacher to help solve the dilemma of thinking.

Read the book from the beginning, do more questions, and understand every type of question.

Focus on the basics, the basics!

（1）k+、cl-、oh-

2) B AG+ +Cl- ====AGcl(3) increases with the increase of the volume of ammonia added at the beginning, forming Agoh and Al(OH)3, and then begins to decrease Agoh to dissolve to form silver ammonia solution, and finally stabilizes at a value.

4）no3-:al3+:k+=12:3:6

1.Phenolphthalein turns red, there is OH-, then there can be no AG+, Al3+ in the A test tube, otherwise it will precipitate. AG+ and Al3+ are in the B test tube, and the B test tube cannot have CL-. Thus, a has cl-, oh-, k+, and al3+, ag, no3- in b

ag+cl-=agcl↓

al3+:k+=12:3:6

1..Phenolphthalein turns red, indicating that there is OH-, then A can not have AG+, Al3+, otherwise precipitate, so the cation can only be K+. Ag+ and Al3+ are in the B tube, so B cannot have Cl-, so the anion is NO3-.

2. b ， ag+ +cl-=agcl↓3. 1:3

al3+:k+=6:1:3

(1)oh-

2)a ag++cl-=agcl(3)1:3

4) 1:1 The amount of each solute is equal, no matter how mixed and diluted, the amount of the substance is 1:1

(1) Phenolphthalein turns red, indicating the presence of K+ and OH- in alkali; Al3+ and Cl-.

2) B test tube, Ag+ +Cl- =AgCl (3) is not linear.

4）k+：no3：al3+=1:1:1

1, oh-, ci-, k+ (grasp the acid-base properties of phenolphthalein, and anions that cannot coexist with ag+).

2, B ag+ +ci = agci (precipitation): 3

4,no3-:ai3+:k+=12:3:6