What part of high school chemistry is the hardest? Which is the hardest chemistry book in high schoo

1. I think organic chemistry is more difficult, there are too many things that need to be memorized and understood, and the college entrance examination question types are complex and diverse, and I often test very strange things, especially the derivation questions of organic chemistry. Anyway, at that time, it was very difficult for us to study organic chemistry, and we had to take the college entrance examination, and when we went to university, we would find that inorganic chemistry was actually more difficult.

2. For chemistry, experiments are a very important part, which is also a direction of several difficult points in the third year of high school, including many aspects, including the use of instruments and device diagram recognition; Knowledge of experimental operation and safety; There are gas preparation and air tightness inspection, etc.; It also includes the identification, separation and purification of substances, as well as the evaluation of experimental design and protocols. In short, chemistry experiments and conclusions are an important part of the difficulty of chemistry review in the third year of high school, and they should be well mastered.

3. No matter what you learn, it is a heavy foundation, as long as the foundation is good, there is no difficult problem. According to your situation, it should be difficult to solve the problem if the foundation is not laid. The main types of chemistry questions are experiments, the allocation of chemical equations is equal, and the difficult part is experiments.

There are not many experiments to remember in chemistry, and there is generally only one representative experiment in a family, as long as you remember the raw materials, reaction principles, and reaction conditions. Gas experiments are generally the focus, some raw materials will have other reactions if there is an excess, not only to remember the conditions, but also to remember the amount of raw materials and what will happen after the excess, and what the reaction will generate. In inorganic chemistry, experiments and ion equations are important, and the representative ones are aluminum and iron, which are difficult and important.

As long as the representative ones are remembered in the main family, they can be followed in order.

I think it's more difficult to balance the reactions. In addition, some students will have some difficulties in learning organic chemistry, which is not easy to understand, but the essence is not too difficult.

Generally speaking, organic chemistry and process parts are relatively difficult, but it depends on personal preference.

Seriously, I love chemistry and it's easy to learn. However, there are also some things that I find difficult, that is, the content of Elective 4, a small part is difficult to understand, so it is equivalent to balance.

Organic chemistry is more difficultThere are too many things that need to be memorized and understood, and the types of college entrance examination questions are complex and diverse, and very strange things are often tested, especially the derivation questions of organic chemistry.

For chemistry, experiments are also a very important part, which is also a direction of several difficult points in the third year of high school review, including many aspects, including the use of distressed instruments and device diagram identification, experimental operation and safety knowledge, gas preparation and air tightness testing and other aspects, as well as substance identification, separation and purification, as well as the evaluation of experimental design and schemes, etc.

Tips to improve your high school chemistry scores.

First, the basic knowledge must be understood.

For example, non-metals and their compounds (S element, N element), metals and their compounds, ionic reaction and coexistence, redox reaction.

Second, chemical experiments should be emphasized.

I believe that high school students, especially science students, have a stronger ability to memorize experiments than the words and equations in books.

For a science student, it is natural to study physics and chemistry, so which is more difficult for high school physics or high school chemistry? Different people have different opinions on this question, and I personally think that high school physics is more difficult to learn.

Compared with high school physics, junior high school physics is relatively simple, it is related to the reality of life, often closely related to our life phenomena, easy to understand, and there are more memorable knowledge points, and then there are a small number of basic calculation problems, and generally hard-working children learn well. But high school physics is different, high school physics is no longer a few simple formulas can solve a physics problem, at this time, it requires more abstract thinking ability and rich spatial imagination, at the same time, we need to think and analyze deeply, we need to use our brains to understand, so it is more difficult.

However, comparing high school chemistry with junior high school chemistry, it is not difficult to find that high school chemistry still needs to memorize a large number of chemical equations, but the equations are more complex, the experimental process is more cumbersome, and some science calculations are also required, but the calculation difficulty is far less than that of high school physics. Therefore, high school chemistry requires us to memorize a lot of knowledge points like many liberal arts students, and we also need to do science calculations. However, high school physics is different, in addition to calculation, we need more perception and understanding, we can refine it into a word "enlightenment", which makes many people have a headache, especially for female students who are poor in logical thinking.

Only when you realize it and open your mind will it become easier, but it will also take a lot of time.

Therefore, on the whole, high school physics will be a little more difficult, and it will take a lot of time to invest, and at the same time, you need to use your brain diligently, think more, and understand it.

One of the most difficult books in high school chemistry is Elective 4 (Principles of Chemical Reactions), and the most difficult part is chemical equilibrium, ion equilibrium in aqueous solution, and precipitation equilibrium, which actually belong to chemical equilibrium.

Why is chemical equilibrium difficult? Because it is against your intuition (at least from junior high school to high school), there are some reactions that cannot be carried out completely, and acids and bases can coexist to some extent, which is unthinkable for some people, isn't chemistry a quantitative science?

When it comes to chemical equilibrium, we have to talk about equilibrium constants. This was first discovered experimentally, and for the same reaction, a number can always be calculated at equilibrium: this number only varies with the temperature closure, but it has nothing to do with other factors.

And this has become a thing that cannot be avoided in chemistry, and as you study deeper, you will find that this constant is related to thermochemistry (but this is all after you get to university).

It is also counterintuitive that the chemical equilibrium is a dynamic equilibrium. Isn't the concentration the same? Why are you still moving?

Amazing, right? In fact, it is not difficult to understand that thermology tells us that molecules are constantly moving and will constantly hit each other. Isn't that dynamic?

To add, the ionic reaction and precipitation reaction in the aqueous solution are also chemical reactions, so I classify the ionic balance and precipitation equilibrium in the aqueous solution as chemical equilibrium.