How is it more effective to revise junior high school chemistry?

Back Metal Activity Order Table Top 20 Chemical Elements Periodic Table Valencies Common precipitates and their colors Questions about acids and alkali salts This is basic There is also a lot of questions that have been done (key questions and questions that you have done wrong, and more calculations) There are also chemical equations Don't write them wrong Pay attention to precipitation symbols Gas symbols Trim Reaction conditions And then there is the use of some things in the laboratory That's about the same The chemistry entrance examination will not be very difficult Don't worry, buddy, you will definitely be able to pass.

Clause. 1. Organize the knowledge framework, list the chapters of the table of contents, and extend the content (such as equations) one by one, so that you will have an understanding of the entire knowledge system.

Clause. Second, the breakthrough of points, because you have understood the knowledge framework, you can distinguish what you are good at and what you are not good at, and you will also find that you have a breakthrough in the need for special review.

Clause. Third, return to the test questions, knowledge is to test you by the test, so you should analyze the test questions, such as the basic type, probably that mode, according to the focus of the test questions and then reasonable review, it will also get twice the result with half the effort.

Some tips: Chemistry also has a lot of rote knowledge points, and you can also memorize it from time to time with a small notebook like memorizing English; And pay attention to not always learn only one subject, the effect will be low after a long time, you should review other courses from time to time, change the way of thinking, the effect is better; You can also learn a lot of tips by discussing with your classmates. I have seen a very good method for the study and review of chemistry, you can search for "six months, from the last place to the top of the college entrance examination", I hope it will help you, come on!!

Equation Acid-base dissolution table Metal Activity Sequence Table Experiments on the production of oxygen, carbon dioxide, hydrogen, and smelting metals in textbooks There is also the identification of ions in each ion, carbonate ions, sulfate ions, chloride ions, etc.

Review the basic knowledge more and must grasp it firmly, and then practice intensively by question type, which is how the teacher took the review at that time.

The content of the book must be mastered, do not memorize by rote, it is easy to backfire, and combine it with exercises to memorize, such as equations, valence, metal activity order table, periodic table of chemical elements, common precipitation and its color, acid and alkali salts must be known.

Do a few more exercises, chemical reaction equations must be memorized, your teacher should give you some review outlines, you must read carefully, there is a great chance of getting the test, and there are some characteristic reaction phenomena to focus on.

1. Basic concepts and theories.

2. Knowledge of elemental compounds: the composition, composition, physical properties, chemical properties, and uses of several common elemental compounds.

3. Basic experiments, preparation methods of key substances, experiments.

4. Basic calculations: chemical formula calculation, chemical equation calculation, solution calculation, comprehensive calculation.

Do a good job of the past 3 years of mid-term exam questions, find out the question type, ideas and your own loopholes, and make up for them in time.

Description: Junior high school chemistry questions design substances are common and typical, don't think too much.

Categorize knowledge according to the review materials, strengthen memory and understanding, complete relevant targeted exercises, and listen carefully to the teacher's review guidance.

Read more textbooks, do more exercises, and most importantly, ask more questions and think more.

The chemistry entrance examination is not very difficult, but you must be careful, otherwise it is easy to make mistakes, the review class must be targeted, you should supplement your own shortcomings if you know it, why you will still answer it badly, if not, it is to review from scratch, and you can't make a little mistake Elite chemistry teacher.