We explain what chemical phenomena are, their characteristics, classification, and examples. In addition, physical phenomena.
Chemical Phenomena are thermodynamic processes in which two or more substances change their molecular structure and generate new substances, called products, whether chemical elements or compounds. Chemical phenomena are also called chemical reactions or chemical changes, terms that are basically synonyms.
In chemical phenomena, there is a significant change in matter, which is never the same at the beginning of the reaction as at the end, so that it is usually irreversible and not always observable to the naked eye. On the other hand, the proportions of the matter and energy involved always remain constant.
Chemical reactions are common in our day to day and many of them are key in the manufacture of products, obtaining energy, and other processes of importance to society.
Chemical reactions are classified, first and foremost, according to the type of chemical elements involved. We will have, thus, organic and inorganic chemical reactions, and each type of classifies independently:
Inorganic reactions. They can be of four different types:
Organic reactions. Organic reactions, on the other hand, depend on the type of organic compound in question, since each functional group has a range of specific reactions: alkanes, alkenes, alcohols, ketones, aldehydes, etc.
Any chemical reaction is a good example of chemical phenomena, even those that occur inside our bodies. We can mention some simple cases, which are:
The difference between physical phenomena and chemical phenomena has to do with the type of change in matter. Physical phenomena are changes of structure, of state, in which the substance remains chemically the same.
For example, if we freeze water, we can turn it into a solid (ice), while still being made up of hydrogen and oxygen.
Instead, chemical phenomena reorganize the molecular nature of matter, building and destroying atomic bonds and creating new substances. This is because a chemical reaction, usually irreversible, occurs in which substances totally different from the initial ones are obtained. Chemical Phenomena
For example, after burning a paper and turning it into ashes, we cannot restore it to its original condition.
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