What is the primary function of a catalyst in chemical reactions?

The primary function of a catalyst in chemical reactions is to control the speed of a chemical reaction. Catalysts facilitate reactions by providing an alternative pathway for the reaction with a lower activation energy. This means that the reaction can proceed faster than it would without the catalyst. Importantly, catalysts are not consumed in the reaction; they can be used repeatedly to accelerate multiple reactions.

In the context of nail technology and related chemical processes, understanding the role of catalysts is essential, as they are often used in products like adhesives and curing agents. The ability to influence the speed of chemical reactions allows for better control over the application and curing processes in nail services.

Other options describe functions that do not align with the role of a catalyst. For instance, creating a barrier may inhibit reactions rather than facilitate them, and slowing down or preventing mixing of ingredients contradicts the catalyst’s purpose of promoting a more efficient reaction process.