Another name for a chemical reaction is a chemical change. In the context of chemistry, a chemical reaction involves the transformation of one set of chemical substances into another, which can also be described as a change in the chemical identity of the substances involved.
During a chemical reaction, the bonds between atoms are broken and formed anew, which allows for the rearrangement of atoms and the creation of different compounds. This is why it is often referred to as a chemical change; the original substances undergo a change that alters their chemical structure, resulting in new products.
Understanding this terminology is important in chemistry, as it highlights the nature of processes that lead to the formation of different molecules, and helps distinguish between physical changes (which do not alter chemical composition) and chemical changes.