Doesn't hydrogen have one energy level assuming that we only have one electron and not an ion?

What is the relation between concentration of reactants and the rate of chemical reaction?

56.16 gregor mendel was the first scientist to use statistics to analyze scientific data. before mendel's experiments, scientists believed that organisms acquired traits from their environment and passed them on to their offspring. after mendel's discoveries were accepted, scientists realized that traits passed to offspring were the result of genes being passed from parents to offspring. this is an example of pls

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