Final answer:
In addition to other label elements, all container labels for hazardous chemicals are required to include pictograms, which are essential for communicating hazards visually as part of the GHS system.
Step-by-step explanation:
Container labels for hazardous chemicals are required to have certain elements to ensure the safety of those handling them. In addition to signal words, hazard and precautionary statements, product identifier, and supplier identification, all container labels will also need to include pictograms. These pictograms serve as visual representations of the hazards and are an essential part of the Globally Harmonized System of Classification and Labeling of Chemicals (GHS). For example, a flame pictogram indicates a flammable substance, while a skull and crossbones indicate a toxic substance. Therefore, the correct answer is B) Pictograms. Chemical symbols themselves are abbreviations used to indicate an element or an atom of an element, such as Hg for mercury, and they are found on the periodic table. These symbols can appear on labels as part of the product identifier to indicate the chemical substances within the container.