Question

if a laboratory fire erupts, immediately:

• notify your instructor
• run for the fire extinguisher
• throw water on the fire
• open the windows

approved eye protection devices (such as goggles) are worn in the laboratory

• to avoid eye strain
• to improve your vision
• only if you dont have corrective glasses
• anytime chemicals, heat or glassware are used

Explanation:

For the first question: In a lab fire, the instructor is trained to handle emergencies safely, so notifying them first is the correct immediate step. Using a fire extinguisher without training can be dangerous, water may worsen chemical fires, and opening windows can feed oxygen to the fire.
For the second question: Lab eye protection is required when working with hazards like chemicals, heat, or glassware to prevent eye injury, not for vision improvement, eye strain, or only as a substitute for corrective glasses.

Answer:

1. notify your instructor
2. anytime chemicals, heat or glassware are used