Hmm. I'd say awareness (energeticness, perhaps?) is the prerequisite that allows thinking -- at a human level given the proper perceived-physical structure. I don't think "chemicals" experience anything antropomorphically, although suggest on an individual molecule basis they may well react, or not react, given a specific stimulus.
Quite true and just a trick of the semantics I suggested, they are not trump in any way.
It can probably be a given that for the 'experience' to occur there ought to be an underlying framework for the experience to occur. And quite correctly the chemicals (I assume there are these chemicals and a brain and that they appear to behave under sertain rules) in 'my brain' are not having the experience of awareness that I know of. I can only try to define the things i percieve.
From the observable, it would appear that there is a process going on that is associated with awareness. Then it becomes a matter of the observational label applied to the 'observable' event. And by defintition it can not be know except as the 'meme' or passage of information from one presumed exitant to another presumed exitant.
There is a boundary of knowledge that can not be crossed. This is the 'irreducable' where experience can only be had as a personal experience that is not able to be discussed except for the limited associations of language.
I also don't agree that sensory perception & reaction is the "self"in any case. The "self" is involved in participating, but is apparently fully capable of intervening and overriding responses and actions. A mechanism that would allow such interaction -- you know, if it effects or affects ... -- is at least possible to conceive of for an idealist/immaterialist.