Final answer:
The three elements of a WHMIS supplier label that always appear grouped together are the product identifier, hazard symbol, and signal word, conveying essential information about the chemical's risks.
Step-by-step explanation:
The three elements of a WHMIS supplier label that will always appear grouped together are the product identifier, a hazard symbol, and the signal word. These elements are essential for clearly communicating the nature of the chemical hazards present. The product identifier tells you the name of the product, the hazard symbol provides a visual indication of the type of risk, and the signal word, such as 'Danger' or 'Warning', indicates the severity of the hazard. It's worth noting that hazard statements and precautionary statements are also important, but they are not typically grouped together with the product identifier on the label.