Question

laboratory work can be started immediately upon entering the laboratory even if the instructor is not yet present. true false never remove chemicals or other equipment from the laboratory. true false chipped or cracked glassware is okay to use. true false

Explanation:

• For the first statement: Laboratory work should not be started immediately upon entering the laboratory if the instructor is not present. Instructors are there to ensure safety protocols are followed and to provide necessary guidance.
• For the second statement: Removing chemicals or equipment from the laboratory is a violation of safety and laboratory rules. Chemicals can be hazardous if not stored and used properly outside the lab environment, and equipment is meant for lab - specific use.
• For the third statement: Chipped or cracked glassware can be dangerous. It may break more easily during use, leading to cuts or spills of hazardous substances.

Answer:

1. B. False
2. A. True
3. B. False