I've been attempting to collect all the unsolved problems in Neuroscience and make a list, as well as for every other science in hopes of progressing knowledge. Even just a little bit. If you're interested in helping with what Chemistry knowledge you have, you can come join an intellectual community and help us solve the big problems left in the World.
Support science and the progress of knowledge. Learn and discuss currently-reigning theories, the newest breakthroughs and the problems with concepts at hand.