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7. You are really curious about chemistry and chemical reactions. You wonder what would happen if you mixed chemicals in a different way or introduced something new into a procedure. You should:

A Stomp that curiosity down. Chemists do what they are told. Nothing more, nothing less.

B Run with it. Mix and match chemicals to your heart's desire. What's the worst that could happen? Explosion? You laugh. Toxic fumes? As if.

C Get the Nobel prize for your brilliance. But first.. let's try things and see how they work. But as for the scientific method and making predictions? That's for sissies.

D Be applauded for your curiosity, imagination, and quest for innovation, but be very, very careful about altering procedures. If it's a lab experiment for a grade, don't deviate from the procedure. Otherwise, make a prediction about what could happen based on your observations. Research possible reactions and consequences before playing mix and match in the lab.

8. There is a container on the lab bench containing some unknown chemical. You should:

A Dump it, wash the glassware. Some people are slobs.

B Move it out of the way in case it is dangerous. Otherwise, not your problem.

C Leave it. The rightful owner will claim it eventually.

D Find your lab supervisor and ask what to do. If you are the lab supervisor, remove the container (noting its location), hunt down the offender, and try to get some idea what could be in the beaker so you know how to dispose of it.

9. If you break a mercury thermometer, or otherwise spill mercury, you should:

A Leave it for others to find. Accidents happen. It's pretty obvious it was mercury. No big deal.

B Grab some paper towels, clean it up, and throw it away. Problem solved.

C Clean it up, being sure to throw away the mercury-contaminated items wherever heavy metals go. Don't bother anyone about the spill though. What they don't know can't hurt them.

D Leave it alone, but call your instructor or lab assistant over immediately to deal with the spill. You're alone? Call whoever is responsible for lab accidents. Only clean up the spill if you have been trained to deal with mercury. Don't pretend like it didn't happen.

10. You see someone in your lab engaged in an unsafe lab practice. You should:

A Point and laugh. They will clue in and change their behavior from the humiliation.

B Point and laugh and tell the person what an idiot he or she is being, and why the lab practice is unsafe.

C Ignore them. Not your problem.

D Nicely, politely point out the possible danger and how to avoid it. You're non confrontational? Find someone with more courage who can tactfully correct the problem. (Ok, maybe if it's pipetting by mouth or thwacking the cap on an ether bottle with a screwdriver the second answer is worth considering.)

http://chemistry.about.com/library/weekly/blsafetyquiz.htm

(17.10.2012)

8 Listen the company information on safety and answer these questions. Then read the company document and check your answers.

1 Who is this document for?

a) managers; b) lab assistants/chemists; c) all employees;

d) injured employees

2 Who wrote this document?

a) technician; b) manager; c) company safety officer/supervisor;

d) medical staff; e) trade union representative

3 What is the writer’s intention?

a) to prevent accidents; b) to ensure speedy help for injured employees;

c) to protect the company; d) to warn about dangers

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