Classify the steps involved in the formation of a solution as being endothermic or exothermic. separation of solute molecules separation of solvent molecules formation of solute-solvent interactions

Endothermic reactions:  separation of solute molecules , separation of solvent molecules

Exothermic: formation of solute-solvent interactions

Explanation:

An endothermic reaction can be described as a reaction which requires energy. Usually, the energy is taken in the form of heat from the environment. For example: the separation of solute and solvent molecules.

An exothermic reaction can be described as a reaction in which energy is released during a reaction. For example, a solute and a solvent reaction. Energy is usually released in the form of heat during an exothermic process.

an active site is a region that is present on an enzyme where the reactants or the substrate molecules we can say bind and experience a chemical reaction. the substrate is basically a reactant whose concentration is changing and that is converting into a product after binding at the active site of an enzyme