How to become a better chemist?

Physics and chemistry, a complicated subject?

If you really think about it, Physics – Chemistry is not that hard: if you really try to understand a principle, if you take a minimum interest in what you do, if you don’t have this negative thought which is “I’ll never get there, it’s too complicated” when you find yourself faced with a seemingly thorny exercise.It’s true what, how do you want to move forward if as soon as you encounter a difficulty you get discouraged? How ?Like a cockroach surviving being crushed by the evil shoe, you must resist discouragement !

Tell yourself “it doesn’t matter, it will come!”. But be careful, also put it in your head that it will not come by itself.The concepts of molar concentration, refraction and other gravitational interactions will perhaps become clearer if you practice a little, for example. Or that you ask someone reliable for explanations. 

To do all this is to seek to understand.To say to yourself “The teacher sucks and she explains badly. What use will it be for us later anyway?”, then twiddling your thumbs while continuing to complain, it’s not trying to understand.


How will it help us later? 

It depends on what you want to do! But the mark you will have in the control may affect your average, if you do nothing.


Know how to manage your time

Don’t get caught up in time. Write your answers clearly (avoid, in the literal development, abbreviations and symbols…). To solve a problem, make a diagram and define, when it is not done in the statement, unambiguous notations. Distinguish between the data and the requested result; the physical laws linking this data and this result will lead you to “the formula” which allows the resolution of the question. If your drawing is not similar, it does not matter, provided you indicate the name of the device using a small arrow… Ditto for an electrical or electronic assembly. If, for example, you have several ohmic conductors in your assembly,1 , R 2 , R 3 ,…). And, in your text, specify the value (in ohms) of each.

How to manage your time?

During the tests, always carry a watch or an alarm clock. Indeed, time management is very important. You have to know how to optimize your working time according to the time/points ratio granted to each question.

Don’t get overwhelmed

First of all fatigue, which accumulates when a student goes to bed a little late several times in a row, to finish writing an assignment, preparing a glue or a supervised assignment. Another discouraging factor is of course a lesser success than the previous year, a catastrophic DS grade, a completely failed glue, a somewhat harsh remark from a teacher, the impression that the efforts made do not bear their fruits…. In short, the student thinks that he will miss his year, that he is unable to follow and that he will never be taken in the second year.

For the interns, in addition to these two reasons, there is the separation from the family, very difficult to bear by those who until then were pampered in the family cocoon. Mathematics


Electricity and mechanics are based on the knowledge of the high school curriculum.

 Knowing how to solve first and second order linear differential equations is absolutely essential. We will advantageously make the link with the corresponding course in mathematics, if possible with the help of the teachers.

The methods

Exercising shouldn’t be a waste of time . You have to develop a method, apply it, manipulate it according to the exercises. The course must be known before , otherwise how to apply it, how to understand what we are doing? You have to do exercises until you have the feeling (ideally) that no more exercises of this kind will stop you. A physics lesson cannot be learned by heart, it must be understood, from its problematic to its outcome : the resolution of the problems posed. It goes through demonstrations,namely redo. It’s only off-putting if you imagine it childishly. A demonstration helps understanding, and is required both in writing and orally! Proofs are the heart of scientific theories . Being an engineer, researcher, or teacher requires the ability not only to understand a demonstration, but also to develop one in his field of research. Only a teacher can clearly explain to you a lesson you don’t understand, a problem you don’t solve. Do not hesitate to ask them, without forgetting that there are several professors in your establishment and that each one has their favourite fields. Word games are very useful in this subject which presents, especially for fluid mechanics, many formulas to learn.


How to become good in physics and chemistry?

To gain experience and better understand physical and chemical phenomena, it is necessary to train with practical work (TP)


Atomistics is perhaps the most important area you will cover. It is by referring to it that you will then know why such a molecule dissolves in such a solvent and not another, why such a function reacts on such an atom, why such a metal is more reducing than another, why such an ion exists and not with one more electron. 

aqueous chemistry

Aqueous Chemistry will introduce you to different types of simple chemical reactions , of which the acid-base reaction is the model seen in high school class. Always start by writing down the reaction and its constant. In redox , you have to write redox half-reactions and Nernst’s law. In solubility, know how to make a material balance and discriminate between the case “presence of solid” (Qr=Kr) and the case “absence of solid” (Qr Whatever the chapter, always remember to make a progress chart. 


The concept is simple, mathematical: you have too few equations for too much missing data. The advancement table gives you a unique unknown. Instinctively recognize a total reaction from a balanced reaction. If a product is an escaping gas, for example, the reaction will be complete. Binary solutions are based on Clapeyron diagrams . Learn to interpret them well, and make the link with the chapter devoted to magmatism in Earth Sciences.

organic chemistry

Organic chemistry is often overlooked as these chapters require little thought. All organic chemistry is based on a simple principle: an electronegative element , therefore nucleophilic, will react with an electrophilic element according to Lewis’ rules of acidity. All learning mechanisms are based on this concept. Reproduce them several times to clearly understand which element reacts on which other and why. Draw the empty quantum boxes and the non-binding doublets to help you, as well as formal or even partial charges in case of hesitation. For the mechanisms, it is absolutely necessary to trace with the help of arrows the attacks which take place. Get into the habit of naming reactions, for example for electrophilic aromatic addition: