Whether the periodic table of elements is found or not, the law of chemical elements is still there, unchanged.

How close chemistry is to us is the basis of all life.

Everything you hear, see, smell, taste, touch is all about chemicals. Hearing, vision, taste and touch all involve a series of complex chemical reactions and interactions in your body.

Chemistry is not limited to beakers and laboratories. It's around us. The more we understand chemistry, the more we can feel our world.

Scientists believe that everything is made up of chemical elements. Although there are countless kinds of substances in the world, from the micro field, it is nothing more than the different arrangement of more than 100 elements; there are only dozens of substances that we often touch around us.

A cup of ordinary water, composed of hydrogen and oxygen, and other mineral elements, such as sodium, calcium, magnesium, chlorine, etc;

A building, from silicon, oxygen and hydrogen of non-metallic elements to iron, aluminum and nickel of metallic elements, has a much more complex composition.

Pull a grass from the ground, which is rich in potassium, sodium, magnesium and other elements, so someone told you that a certain health care product contains the above elements, in fact, it is no different from several weeds.

Chemistry is the study of matter and its possible changes. To a certain extent, understanding chemistry is essential for understanding the world around us.

It is the basic content of chemical research to understand the basic properties of substances and to predict and explain their changes when they react to form new substances.

It's not so much what chemical application products we have around us, but what kind of products we have around us are not chemical application products.

Scientists have created things that are not natural or hard to obtain in nature. At the same time, they have summarized these creations in theory and expanded production.

By applying mathematics, physics and chemistry to production practice, the productivity of human beings at the end of the 19th century and the 20th century has improved far more than the sum of the past thousands of years.

The essence of chemical reaction is to recombine the natural substances into another substance, and chemical industry is to expand the process of this combination into practical application.

What are the chemical products in our life

So it can be said that all the products related to plastics and organic materials you come into contact with, whose predecessors are black and sticky petroleum, have become fuels and things we come into contact with everyday after chemical transformation.

Back in the last century, none of these things existed.

Think of a famous cosmetic advertisement word "I don't want chemistry" a few years ago. Of course, there are many kinds of cosmetics now boasting "pure natural ingredients", which is silly and ridiculous in the eyes of people who understand chemistry.

The so-called "pure natural ingredients" are extracted from plants with chemical reagents. The packaging, thickener and solvent of cosmetics are all products converted from petroleum.

That is to say, to make a natural product that really leaves the chemical industry, it is to mash the leaves and petals with oil and then apply them on the face.

As for the white paste, it can't be made without chemical synthesis.

Modern pharmacy is an important practice of chemical synthesis.

Open Pharmacopoeia, from metformin for diabetes, captopril for hypertension, paracetamol for pain relief and fever reduction, and common drugs for various diseases are products of chemical synthesis

Some natural drugs can not be separated from the workshop purification process of chemical products.

Although most people can't memorize the periodic table of elements, a little chemical fur learned will be forgotten with the end of the college entrance examination.

But every day of our lives is inseparable from chemistry. Chemical research also plays a key role in the progress of social science and technology.

It is the 150th anniversary of the advent of the periodic table of chemical elements. It is also a commemoration of the discovery of the periodic table of elements and a tribute to the contribution of modern chemical development to our society.