Which of these is NOT a potential chemical hazard?

The reasoning behind identifying that storing chemicals separately from foods is not a potential chemical hazard lies in the fundamental principles of food safety and hazard management. Storing chemicals away from food is a key practice designed to mitigate the risk of chemical contamination. This practice helps ensure that hazardous substances do not inadvertently spill, leak, or come into contact with food items, which could lead to foodborne illnesses or poisoning.

On the other hand, actions such as spraying pesticides during food preparation or wiping tables with sanitizers while guests are eating present direct risks of chemical exposure to food. Both scenarios can lead to situations where chemicals may contaminate food, harming consumer health. Similarly, storing chemicals in food storage areas is inherently unsafe as it increases the likelihood of chemical cross-contamination. Thus, the practice of separating chemicals from food is essential for maintaining a safe food environment, making it the correct choice for the question.