In organic compounds, carbon is an important element. Numerous molecular transformations and the formation of various large molecules of organic compounds occur due to the unique property of carbon atoms. This property consists in the fact that carbon atoms having four valence bonds are capable of combining in a certain order into long chains and closed ring structures. These carbon chains and rings are the “skeletons” of complex organic molecules.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.