réactif

Réactif is a French word that translates to "reactive" in English. In chemistry, a réactif refers to a substance or compound that is involved in a chemical reaction. It is a key component that undergoes transformation during the process, leading to the formation of new substances called products. Réactifs are the starting materials for chemical synthesis and analysis. They can be elements, molecules, or ions, and their specific properties, such as reactivity and concentration, are crucial for controlling the outcome of a reaction. The term can also be used in a broader sense to describe anything that responds to a stimulus or influence. For example, in psychology, a person might be described as réactif if they tend to react strongly to certain situations. In engineering, a réactif component in a system is one that changes its state or behavior in response to external input. The specific meaning of réactif often depends on the context in which it is used.