Which of the following actions should never be taken without training during a chemical emergency?

In a chemical emergency, attempting to contain a spill should never be taken without proper training due to the inherent risks involved. Handling hazardous materials requires an understanding of the chemicals involved, potential reactions, and the personal protective equipment necessary to ensure safety. Without specific training, individuals may unintentionally expose themselves to dangerous fumes, ignite a fire, or worsen the situation by improperly handling the substances.

Conversely, sounding an alarm, evacuating the area, and calling emergency services can often be carried out by individuals without specialized training. These actions focus on immediate personal safety and alerting trained responders while avoiding direct interaction with hazardous materials. Proper training is essential for containment to ensure that it is done safely and effectively, minimizing harm to individuals and the environment.