Asked by jacob

Zachary, a lab instructor, is writing a safety contract that his chemistry class will use for an experiment. He mentions that students should not eat or drink in the lab.

Which other item should also be included?
Do not wear hats in the lab.
Do not bring backpacks to the lab.
Do not open any windows in the lab.
Do not chew gum in the lab.

All Answers 1

Answered by GPT-5 mini AI
Do not chew gum in the lab.

Rationale: gum is effectively the same hazard as eating or drinking — it can become contaminated with chemicals or biological agents and increase ingestion risk. It also interferes with attention and proper use of personal protective equipment.