Answer:
well the modern day periodic table was created by Henry Moseley
<span>The RNA world is the hypothesized format of chemical life that existed prior to our current DNA and RNA world. In the RNA world, RNA molecules formed in the primordial soup and began to evolve by self-replication and mutation. This led to increased complexity, natural selection of "better" RNA and diversification of RNA based life.</span>
Sand and glass have different chemical formulas, so that means that the atoms are rearranged and this is a chemical reaction.
