"Is life just a chemical reaction?"

perhaps, but within the quantum realm that governs chemical reactions we have a principle called the uncertainty principle which in my opinion makes it likely that we have free will.
if we have free will, we can transcend the state of being merely a chemical reaction.

"Science is really just about naming things; find something nobodies noticed before and name it."

the above mentioned is part of what science is but science is also about understanding and predicting.

"So is the soul and spiritless, dreamless way to define life a chemical reaction? As I read in another entry do stars experience things?"

i don't think so. since we have free will, it seems we are able to transcend the everyday limitations of physics such that we are able to express soulfulness and spirituality and still survive.
as for the stars and other objects of the physical world, i would like to believe that they do experience things on some level. not at the level of sentient beings though.

regards,
tim