The molecular formula of benzene is C6H6, and its empirical formula is CH. You may refer to a substance by its name, and recognize it by its properties. Properties are related to the structure and the composition of the molecules. Knowing the chemical formula is a giant step towards understanding a substance.
Q: Which group of algae is responsible for formation of kelp beds along the North American coasts?Select one of the options below as your answer: A. Brown algae B. Green algae C. Red algae A: A. Brown algae is responsible for formation of kelp beds along the North American coasts.
In southern California, giant kelp beds were common until the 1950s. Changes in water conditions and the near extinction of the southern sea otter, which resulted in a population explosion of the purple sea urchin, severely reduced the size and number of local kelp beds for several years.