What is the purpose of baking a chemical pie?

The purpose of baking a chemical pie would depend on the specific context or ingredient. However, if we assume that "chemical pie" refers to a pie made using chemical reactions or ingredients, the purpose could vary. Chemical reactions and ingredients can be used in baking to achieve different effects, such as altering the texture, leavening the pie, enhancing flavors, or extending shelf life.

To get a more specific answer, it would be helpful to know the particular chemical or ingredient you are referring to in the context of the chemical pie.