What modules should I choose for the chemistry competition?

I'll give you a rough overview of the main aspects (I don't think I understand what you mean by that?). First, the inorganic elements part, you must have a university element knowledge reserve, choose a set of inorganic textbooks (if you haven't seen inorganic elements until now, just read the "Inorganic Chemistry Core Course" (Science Press) edited by Professor Ji Daxu, it will be faster to get started), and then with a set of exercise books, do exercises, and the chapters of the main family elements should be completed.

Second, the inorganic theory part, the same to learn university knowledge, the four major balance, coordination compounds, atomic structure, molecular structure is the focus, it is best to do the corresponding exercises.

I don't look at it except for the calculation (module 3 is right).

If you want to get started better, you need to have a good orientation and mentality for chemistry competitions. This astonishment and intoxication brought about by mere exposure to higher knowledge is far from proving our superiority in any respect, and others can learn from it. Both the competition and the college entrance examination have their own difficulties and priorities, which require unremitting efforts and the mastery of emerging talents.

Recognize your understanding of the content of the Huajing (which is generally shallow due to time allocation), generously admit your meals, attach importance to any cultural lessons, and then make the Huajing another subject in the college entrance examination.

Secondly, you need to arrange your time reasonably. The common experience often has its own inherent rationality, which has great reference value for newcomers to Huajing, especially to help newcomers in areas where Huajing resources are not very rich to avoid detours. You know, all roads lead to Rome.

After all, everyone's talent and skill point distribution is different. Learning from general experience can only ensure that the general direction of learning is not biased. However, when bottlenecks are encountered, non-universal experience offers more possible solutions to individual problems.

Furthermore, it is necessary to understand the selection method of the province. Some provinces directly select candidates based on their results in the preliminary examination, such as Tianjin, some provincial capitals re-examine the theories and experiments of the finals, such as Shandong, and some provinces only test experiments, such as Beijing. Only the theory province is examined.

The theory questions try to find a way to get the provincial team selection questions over the years. Through senior coaches or other methods, do it several times to find out the knowledge points. The provincial team selection questions will be different from those in the preliminary and final rounds.

Some exams close to the university require candidates to be careful.

To know the electrochemical oxidation state. The basic concepts of redox and the writing and equilibrium of reaction equations. Primary batteries.

Electrode Symbol, Electrode Reaction, Galvanic Cell Symbol, Galvanic Cell Reaction. Standard electrode potential. The standard electrode potential is used to judge the direction of the reaction and the strength of the oxidant and reducing agent.

The electrode symbol of the electrolyzer reacts with the electrode. Electrolysis and plating. Galvanic corrosion.

Common chemical power sources. Describe the effects of pH, complexing agents, and precipitants on redox reactions.

1. Learning objectives: systematically and solidly learn the knowledge points required for beginners.

The first year is the "first year" of the learning competition. At this time, students are usually less stressed in class and have more time to devote to competitive learning. After completing one year of study and taking the National College of Education, students can make a reasonable assessment of their natural interests, abilities and levels based on the results of the first National College Examination.

In the second year of high school, when the class is stressful, help yourself adjust your learning goals and invest your time reasonably.

Therefore, it is recommended that you spend a certain amount of time and energy in the first round of high school study to complete the basic knowledge of junior high school seriously.

2. Knowledge composition: high school chemistry + basic principles of chemistry (including analysis) + organic chemistry + inorganic elements and structural chemistry.

The examination time of the Huajing National Examination is September every year. Generally, we recommend that students complete their high school chemistry studies during the summer of their third and first year of junior high school. Big.

1. The sophomore year has completed the first round of preparation in the summer vacation, and can successfully participate in the first national examination in September.

It is necessary to have professional knowledge reserves, pay attention to the combination of textbook knowledge and practical operation, and flexibly apply equations; Understand the rules of the chemistry competition in advance and understand the learning tools that need to be prepared in advance.

You can choose to find out what the difficulty of the contest looks like first. You need to prepare the competition papers from previous years and take a look. Then ask the chemistry teacher.

1. Review the basic knowledge of chemistry again to ensure that there are no loopholes in the basic knowledge, and do not ignore the basic content of the keycode. When revising, you can redo the exercises in the class and improve your proficiency and accuracy.

2. Sort out the examination papers in recent years, first answer them independently, and then correct the wrong questions, and organize all of them into the wrong question book to prepare for the review of the future manuscript.

3. Buy the mock test papers of the chemistry competition and practice them in the mold ruler line, find the knowledge points that you have ignored, and make a record. Finally, the mistakes are sorted into the error book.

4. Review the wrong questions and forgotten knowledge points, maintain a good attitude, and finally take the exam.

Hello answer, the conventional understanding is to ask their own teachers to help dial it, the teachers are experienced, experienced in a hundred battles, have seen a lot, experienced, more than enough practical experience, can give you all the help you need.

There shouldn't be any of these competitions in the third year of junior high school now.

Why do you even need to prepare this? Even the usual exams have been controlled, but I'm a little worried that you spend a lot of time on the competition, which will delay your later high school entrance exams.

In this way, you will have the opportunity to participate in high school chemistry competitions in the future, and you will understand your feelings.

It's a good thing that you must be very wise to have such a plan ahead, but it is recommended that you prepare for the high school entrance examination first to ensure that you are admitted to the best local high school, so that you can get all the expected standards later.

Both the ester pins in molecule A:A and the peptide bonds in B can be hydrolyzed, and the left half of the two is hydrolyzed to form identical carboxylic acids.

After the hydrolysis of C:B, the right half is an amino acid, the structure is simply CH3-CH(CH3)-CH(NH2)-COOH, and the carbon of the carboxyl group is one bit, which is labeled to the left in turn, and the jujube is called 2-amino-3-methylbutyric acid.

D: The monomers of A and B are hydrolyzed to form two carboxylic acids, so both A and B can be neutralized with 2n mol sodium hydroxide after hydrolysis.

B: The small molecule carboxylic acid referred to is the right half, and it can be counted that there should be only 14 carbons in its molecular formula.

It seems that everyone has their own opinions about the names of each competition.

All kinds of unimportant races are automatically ignored here.

Important Competition 1: The preliminary round of the National High School Chemistry Competition (provincial division) in mid-September every year

Of course, this seems to be the rematch you said.

The first prize awarded in this competition, the official name is the national first prize, generally known as the provincial first prize, which is a class A qualification for independent enrollment, and will have extra points in the college entrance examination (there may be slight differences in different provinces) In September, the competition ranking is better (30%) can participate in the independent enrollment of Tsinghua University and Peking University and are exempt from the written test, and the interview is passed.

Important Competition 2: During the winter vacation of the second year, there is a winter camp that is the national finals. The top 20% or so of the first prize in the September contest can be entered into this contest.

The awards of this competition are gold, silver and bronze medal system, all of which are eligible for escort, and the worst escort to Xiamen University is no problem, and there is no written test. The gold or silver medal can be guaranteed to Tsinghua University and Peking University. Among the gold medals, the more outstanding national training teams will be found, and 4 more will be found to participate in international competitions.

Of course, the latter is not a problem with going to university.

In the case of competition books, the core materials are university textbooks, and Wuhan University's "Inorganic Chemistry" and "Analytical Chemistry", Higher Education's "Fundamentals of Structural Chemistry", and Xing Qiyi's "Basic Organic Chemistry" are recommended. If you want to ask questions, it's more flexible. It's no problem to find some competition books when you practice, and find some competition questions after 02 years before the competition.

Generally, if you score 80 points on the questions of previous years, you can win the first prize of the province.

The chemistry competition can be taken every year, provided that you are a recent high school student.

If there is no experimental content during the competition in September, it can be ignored in the early stage. The winter camp has experimental content, and the content is not fixed and not determined**. You can refer to the experiment questions from previous years.

If you can enter the winter camp, there will be training camps in the province, and you will practice experimenting at that time. In fact, as long as you have experience and do it seriously, there will be no problem.

College books are certainly useful, and this is the most important information.

The race dog of the year remained.

It is divided into preliminaries, semi-finals, and finals (all in the provincial examination).

The provincial first prize can be submitted to Tsinghua University and Peking University.

All high school chemistry knowledge, inorganic chemistry, and organic chemistry (Higher Education Press) can be tested every year for high school students.