How to learn chemistry in science, how to learn chemistry well,

The basis of chemistry is nothing more than elements and chemical reactions, and I think you should first have a good grasp of the principle of chemical reactions and know what chemical reactions are. The learning steps are as follows: 1. Have a deep understanding of what a chemical reaction is and what are the main components of a chemical reaction.

2. To learn redox reaction, you must know what is oxidation reaction and what is reduction reaction. 3. Memorize and memorize commonly used chemical reaction equations and typical chemical reaction equations. 4. Read the texts carefully to enhance your interest in chemistry.

1, I really don't know what a chemical reaction is, and the main components of a chemical reaction 2, I haven't learned the redox reaction yet, but it's fast 3, I'm very familiar with the chemical reaction equation 4, I'm very interested in this course, but I can't learn it well, this is what makes me most distressed and sad 5, I don't do much and I don't do much, but I don't know how to do some calculation questions, and the biggest loss point in this exam is here Do you have any other good suggestions? I'll be patient and wait for your advice. Thank you!

It's better to have a summary to be proficient.

The foundation is not solid enough Follow-up question: The foundation is good, not bad. So how do you say to make the foundation solid?

Don't be paralyzed when you feel that you understand, you must understand the principle, and learn more horizontally and vertically, so that the basic grasp will be very solid Follow-up question: The knowledge points are through, I can link them together, but I can't do the calculation problem, what foundation does this need?

Note: I can write chemical equations and memorize them very well, and I will wait for your advice. Thank you!

That's because your ability to solve problems is not enough, do more questions and ask teachers and classmates how to solve problems, you should improve quickly Follow-up question: en I will, thank you!

Regarding the study of chemistry, I think that at the beginning of learning chemistry, you have to memorize some things, but you can only survive until you graduate from junior high school, and then you can't rely solely on memorization, because chemistry is a very connected subject, and the evolution of properties between substances is regular.

For example, in the chapter of the periodic law, first of all, you need to understand that with the change of its order from the first element h to the last element 294, what is a period, what is a family, what properties of a periodic element evolve, including the transition from metal to non-metal, etc., what do the elements of a family have in common, how the atomic radius changes, how the properties change, how the liveliness becomes, which have a lot to do with the position of the elements in the periodic table.

Another example is ion coexistence, first of all, you need to understand the concept and characteristics of metathesis reactions. Under what circumstances the formation of gas, what ions coexist easily to produce precipitation, generally carbonate, sulfate, HG salt, AG salt, generally nitrate are soluble, in short, if a metathesis reaction occurs, must not coexist, water is no exception.

It's very simple, memorize more chemical formulas, and analyze the intermediate principles well, and it is necessary to do practice questions, so that it is easy to get started during the exam.

In fact, chemistry is the best to learn.

Although chemistry is a science subject, I think it is easy to learn as long as you memorize and memorize it.

You first have to learn the element symbols, and then accumulate the chemical formulas of matter, such as the chemical formulas of oxygen, and so on.

The second is to accumulate more chemical equations, that is, the equations for the reactions between substances, which you can memorize and memorize.

If you're not very good at the basics, you're better off starting with the element symbols, then the clusters, then the chemical formulas, and finally the chemical equations.

Once you get acquainted with it, it's much easier.

Read more, remember more, memorize more.

I wrote it myself, and I hope it can be adopted! ~！

You can start by memorizing the chemical agenda formula and the chemical properties of the substance, and then you will be proficient in using it before you can summarize some methods.

1. Learning chemistry is the same as learning other courses, pay attention to listening to lectures in class, preview and review in class or after class, and learn each knowledge point thoroughly. But each course has its differences: for example, if I didn't take a Chinese class today, I can make up for it tomorrow after the class, while chemistry is a ring, such as:

If you don't learn decimal addition and subtraction first, you won't be able to, so you must learn each knowledge point thoroughly.

2. Students are most afraid of making mistakes in the exam, and if they make mistakes, they must analyze and summarize. I summarized the four situations in which points are lost: one is that you will do it, but you are careless and do it wrong.

The second is that you can't think of how to do it for a while, and you will do it afterwards. The third is that you don't have enough time, give a little more time to think, and maybe you will do it. The fourth is that you can't do it, you can't do it if you sit there for 10,000 years.

The solution is as follows: First, be careful in the future, and be careful. Second, in the future, we must do more practice, the so-called "familiar with 300 Tang poems, can not compose poems and chant".

Three, be able to use time! Be quick! But it's fast and error-prone!

How can it be fast? There is only one way: practice more!

The fourth is the most terrifying! There are two scenarios for this. One is that you can't do it because you haven't learned it well and can't do it; Another situation is that you have learned well, but you lack the ability to draw inferences and comprehensively, and you can't do it.

Most of the students have the second problem. It makes sense for the teacher to come up with such a question. The teacher will never come up with the questions that everyone will never do, and the teacher is testing everyone's comprehensive ability.

You have to make a few more detours in your brain, think about a few more whys, and you can make it.

Copy the answer, the answer allows you to better understand the knowledge (the answer is the essence of knowledge, it is the kind of analysis, not ABCD), and then copy after reading the question, don't deal with the teacher. The most important thing is to preview before class, listen carefully in class, review after class, take good notes, and organize in time. (That's what I did, and I'll tell you a little bit about it here, my own).

Common elemental valency formulas:

Monovalent sodium, potassium, silver, hydrogen (that silver clear).

Bivalent magnesium, calcium, zinc, barium (not covered with new quilt).

3. Aluminum, 4 silicon, 5 nitrogen and phosphorus.

Two-three-iron two-tetracarbon (di-ferrous iron, triiron).

Copper-mercury bivalent is more common (cuprous, copper).

Negative chloromonosulfide is more common.

The five roots judge the valency of the elements in the chemical formula, and if you are familiar with these, the sum of the valencies of each element in the formula is zero, and the valency of each element can be inferred.

This is the key to a person's good chemistry learning, and in addition, listen carefully to the teacher's lectures in class.

Figuring out the chemical symbols and the price points of the elements is basically about the same.

Read books repeatedly, clarify the context of knowledge, do less questions, think more associatively, pay attention to the combination of phenomena and theories, avoid learning with physics and mathematics in one way, and pay attention to observation and memory.

In fact, chemistry is very simple, but everyone is confused.

Memorize more, memorize more, and know how to draw inferences.

It's very simple, memorize equations, concepts, do more questions, and ask the teacher more!!