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.
A very important group of red algae is the coralline algae, which secrete calcium carbonate onto the surface of their cells. Some of these corallines are articulated (right, Corallina, with flexible erect branches; others are crustose (below). These corallines have been used in bone-replacement therapies.