Chlorine is how many times heavier than water?

Chlorine is indeed 1.5 times heavier than water. This relationship can be understood by looking at the specific gravity of chlorine compared to water. The specific gravity of a substance is calculated by dividing the density of that substance by the density of water. In this case, chlorine has a density of approximately 1.5 grams per cubic centimeter (g/cm³), while the density of water is taken to be 1 g/cm³. Therefore, when you compare their densities, chlorine is demonstrated to be 1.5 times heavier than water.

Understanding the density of substances is crucial in fields such as water treatment, as it can influence how chlorine behaves in water and its effectiveness as a disinfectant. This knowledge is valuable for water operators when they are managing water quality and ensuring appropriate chlorine levels for treatment.

In contrast, while other choices suggest different multiples, they do not accurately represent the weight comparison between chlorine and water based on the established densities.