Editing Philosophy of science (section)

===Philosophy of chemistry===
{{Main|Philosophy of chemistry}}
Philosophy of chemistry is the philosophical study of the [[methodology]] and content of the science of [[chemistry]]. It is explored by philosophers, chemists, and philosopher-chemist teams. It includes research on general philosophy of science issues as applied to chemistry. For example, can all chemical phenomena be explained by [[quantum mechanics]] or is it not possible to reduce chemistry to physics? For another example, chemists have discussed the philosophy of [[Philosophy of science#Confirmation of theories|how theories are confirmed]] in the context of confirming [[reaction mechanism]]s. Determining reaction mechanisms is difficult because they cannot be observed directly. Chemists can use a number of indirect measures as evidence to rule out certain mechanisms, but they are often unsure if the remaining mechanism is correct because there are many other possible mechanisms that they have not tested or even thought of.<ref name="WeisbergEtal2011">{{cite web|url = http://plato.stanford.edu/entries/chemistry/|title = Philosophy of Chemistry|access-date = 2014-02-14|last1 = Weisberg|first1 = Michael|last2 = Needham|first2 = Paul|last3 = Hendry|first3 = Robin|year = 2011|website = Stanford Encyclopedia of Philosophy|archive-url = https://web.archive.org/web/20140407013224/http://plato.stanford.edu/entries/chemistry/|archive-date = 2014-04-07|url-status = live}}</ref> Philosophers have also sought to clarify the meaning of chemical concepts which do not refer to specific physical entities, such as [[chemical bonds]].