what happens to a catalyst in the end of a chemical reaction?
Nothing.
are you sure?
is a question i have to anwser? it doesnt like disapear or anyting?
No, it remains unchanged.
Supplementary information. The catalyst entered into the reaction in one form or another but in the end it is regenerated and is unchanged from what it was at the beginning.
At the end of a chemical reaction, a catalyst remains unchanged. A catalyst is a substance that speeds up a chemical reaction by providing an alternate pathway with a lower activation energy. It lowers the energy barrier for the reaction to occur, but it does not get consumed or altered by the reaction.
To understand why a catalyst is not consumed, let's discuss the key steps in a chemical reaction. In a typical reaction, reactant molecules collide with each other and undergo a rearrangement of atoms to form products. This reaction follows a specific pathway with an activation energy, which is the energy required for the reaction to occur.
When a catalyst is present, it interacts with the reactant molecules, facilitating the formation of a transition state with a lower activation energy. This lower energy barrier allows the reaction to proceed faster. The catalyst provides an alternative reaction pathway by forming temporary bonds with the reactant molecules, which are later broken during the formation of the products. After the reaction, the catalyst is regenerated and can participate in subsequent reactions.
In a nutshell, a catalyst speeds up a chemical reaction by providing an alternative pathway with a lower activation energy, but it remains unchanged and unaffected by the reaction. This is why catalysts can be used repeatedly and have an important role in various industrial and biological processes.