Lab safety

Which of these suggestions is right?

Do not leave the centrifuge until full operating speed is attained

What is the best (most effective) way to minimize risk in lab

Elimination

You really want to impress a certain person in your lab. You should:

Impress them with how incredibly competent you are in the lab.

Your glassware is clean, so you poured a beaker of water to quench your thirst. Too bad you didn't label it. You should:

Label it before you forget which beaker it is. You're sure nothing could accidentally splash into your drink.

If liquid chemical spills on lab bench what should you do?

Notify your instructor

When you are finished using a Bunsen burner you should:

Turn off the gas.

How to minimize spilling solid reagent from balance to lab bench in crowded lab

flask