The term chemical theory refers to a set of principles or concepts that explain a particular phenomenon, reaction or process in chemistry. Full definition
Methods: Using highly refined experimental methods and a solid understanding of chemical theory, the research team performed an elegant series of experiments. (pnnl.gov)
Now I ask you, would it have been rational of these men to have despaired because of this conflict between chemical theory and scientific observation? (religion-online.org)
We focused on learning the biological and chemical theory behind the techniques, and in the lab we spliced genes in and out of bacteria. (sciencemag.org)