How to learn chemistry well? It s about understanding or memorizing

<> to learn high school chemistry well, you must listen carefully in class, think positively, and learn to listen to lectures, such as the teacher talking about the chemical reaction equation, listening to the teacher analyzing the reaction process, and not just remembering the results; The teacher does demonstration experiments, and carefully observes the teacher's demonstration experimental operation methods and experimental phenomena; When the teacher talks about calculation, he should listen to the problem-solving ideas, master the problem-solving methods, learn to standardize the problem-solving steps, temporarily put down and listen to the problems that he did not understand for a while, and then find the teacher to solve the remaining problems after class.

Due to the large and scattered knowledge of chemistry, it is important to take notes in class. You know that there are simple notes in the book, but there are no detailed notes in the book. For the key points, difficulties, and detailed notes.

At the same time, it is also necessary to take both note-taking and listening to lectures, and you can't just listen and not take notes, nor can you just take notes and ignore the lectures.

Review is not just a simple review of knowledge, but a process of summarizing and sorting out the knowledge learned in one's own brain, and forming a knowledge network. Deepen your understanding and mastery of knowledge through review, and avoid confusion as you learn.

For example, after learning about isomers, when reviewing, compare with homologs, allotropes, and isotopes to find out the differences between the four concepts, so that you can deepen your understanding of the concepts, so that you don't have to worry about your high school chemistry is not good, and you can effectively help yourself improve your grades.

What is a special element? It is the reaction can produce special gases, precipitation, color elements, as well as valence elements, combination elements that are acid roots, etc., these are the test points and problem solving starting points of college entrance examination chemistry, and mastering them can help you improve your high school chemistry scores. At this time, students need to learn to summarize special reactions and easily mixed knowledge points, and don't think that with these contents, they will sit back and relax.

Chemistry is characterized by fragmentation, scattering, many, and miscellaneous, which is difficult to remember and easy to forget. When reviewing, we should pay attention to summarizing, constructing networks, and finding out patterns. The content of chemistry review in the third year of high school can be divided into general knowledge and key knowledge, and the basic knowledge and basic skills must be accurately positioned according to the syllabus and the syllabus to improve the pertinence and effectiveness of the review.

Because there are many experiments in high school chemistry, there are many experiments in daily life or in exams. Therefore, when learning chemistry, senior high school students must pay attention to the study of chemistry experiments, and master the process, principle, results and functions and usage of the equipment used in the experiments, which can enable you to learn high school chemistry well and improve your chemistry scores.

The key to good chemistry is to memorize formulas first, but memorizing formulas is not completely easy to learn, you also need to be flexible and experimental!

In high school, the formula doesn't care about Kai Sheng, Sun Sheng mainly understands why the formula is like this, such as the conservation of those formulas (except for those that PV=NRT can't understand in high school).

1. The first 36 elements of the periodic table, the relative mass of some elements (you can hurry up when doing the question).

2. Chemical equations, organic and inorganic, especially should be thought of some equations in terms of quantity and reaction conditions.

3. The properties of substances (especially the chemical properties and special physical properties of common substances, inference questions are useful).

4. Chemical terminology, classification (it is very important to learn to judge whether some substances are oxidizing or reducing, which are acidic oxides, which are alkaline, which are weak acids, etc.), be familiar with some definitions and calculation formulas.

5. Some commonly tested laws (such as the relationship between melting point and relative molecular mass, which should be disassembled in ionic reactions, etc.).

6. The rules summarized by yourself, the types of questions, etc.

The key is to rely on you to study more, think more, and practice more.

The most important thing to memorize simple formulas is to memorize them on the basis of comprehension, and real learning is by no means rote memorization.

In fact, it is not difficult to learn chemistry well: 1) You must memorize the concept when you are ready.

2) The physical properties of matter, including color state, melting point, boiling point, relative atomic mass.

Wait a minute. Chemical properties, the substances or classes of substances that a substance can react with, "Learn to end yourself" is a list.

Na can react with oxygen, water, halogens, and this is a class of substances.

3) Periodic table "This is the top priority".

4) Chemical equations. "Including books, extracurricular, and learn to deduce some by yourself, just draw inferences."

You still need to read more books when you have nothing to do, and compare several concepts when you have nothing to do, especially those that are easy to confuse.

1.In order to understand memorization, chemistry must not be memorized.

2.Use your pen more, take notes, do more questions, reflect after completing the questions, sort out the wrong questions, and pay attention to the method.

3.Develop good study habits.

4.It is necessary to find special cases from the law.

5.Focus on chemistry experiments.

6.Buy a good reference book.

The periodic table as well as some simple chemical formulas such as water, oxygen, hydrogen, carbon dioxide, etc.

The first twenty elements of the periodic table, the valence states of some common elements (potassium, sodium, silver, hydrogen positive monovalent, aluminum-iron positive trivalent, other metals positive bivalent, chlorine negative one, oxygen and sulfur negative two, nitrogen negative three, junior high school notes these are enough), some common experimental phenomena (such as sulfur, carbon combustion, iron, magnesium combustion, ammonium bicarbonate combustion, hydrochloric acid dissolved basic copper carbonate), some simple chemical formulas.

Valence formula, in my space.

1. Solubility formula: potassium, sodium, ammonium salt, nitrate, mostly soluble in water. The main group of soda is removed, and more ammonia is added to the lithium-magnesium group.

Silicic carbonate plus phosphoric acid, see that it only dissolves potassium sodium ammonium. Sulfuric acid is insoluble lead and barium, chloride silver mercury is difficult. Sugar-free teaches you to dissolve the table, remembering the volatile nitrate.

2. Metal valence: monovalent elements are the simplest, potassium, sodium, silver, hydrochloride, bromo, iodine; The bivalent elements are also not deep, beryllium magnesium, calcium, barium oxygen and zinc; The three prices of aluminum will never change, and there will be a change in price; copper, mercury, 12iron, 23, 35, nitrogen, phosphorus, antimony, ditetracarbon, silicon, germanium, tin, lead; Sulfur is two-four-six, and the price of gold is one-three.

Here is the order table of activity: k ca na mg al mn zn cr fe ni sn pb (h) cu hg ag pt au

The chemical formulas of common substances, the top 20 positions of the periodic table, and the main characteristics of some substances, such as color, smell, etc.

Valency of some elements.

There are also some phenomena of important reactions.

Middle school chemistry is so easy! Of course, you first memorize everything the teacher asks, and then memorize the order, name, and symbol of the first 10 numbers of the periodic table.

The first twenty elements of the periodic table.