Free Online Chemistry Courses Revised 9-3-20

Chemistry research studies the participation of electrons and different types of energy in photochemical responses, oxidation-reduction responses, modifications in stages of matter, and separation of mixes. Chemistry is in some cases called the main science since it bridges other natural sciences like physics, geology and biology. The word chemistry comes from the word alchemy, an earlier set of practices that incorporated aspects of chemistry, metallurgy, viewpoint, astrology, medication, astronomy and mysticism.