For safety reasons, which of these labels is the most important to have on a reagent bottle?

A. Corrosive
Correct! Special precautions would need to be taken.

B. Bottled on May 11
Incorrect. Good to know, but not the most important in terms of safety.

C. 65 grams
Incorrect. This amount could be changed easily; therefore, not very important.

D. Density 2.4 g/ml
Incorrect. Again, good to know but not the most important in terms of safety.

Which of the following is the symbol for Radioactive?

A. safety symbol B. safety symbol
       
C. safety symbol D. safety symbol

A
Incorrect. This is the symbol for FLAMMABLE.

B
Incorrect. This is the symbol for CORROSIVE.

C
Incorrect. This is the symbol for POISON.

D
Correct! This is the symbol for RADIOACTIVITY.

A bottle of chemical Y spills on the floor. According to the MSDS below, what is the proper response to this accident?

material safety data sheet

A. Letting the chemical evaporate by blowing fans on the spill.
Incorrect. Reread accidental spill instructions on the above MSDS.

B. Diluting the chemical with water, absorbing the liquid with inert material, and disposing of it in the trash.
Incorrect. Reread accidental spill instructions on the above MSDS.

C. Wiping up the chemical using paper towels and disposing of them in the trash.
Incorrect. Reread accidental spill instructions on the above MSDS.

D. Absorbing the chemical with inert material and disposing of it in a chemical waste container.
Correct!

Susie is in the lab and needs a chemical whose hazard diamond is below. What should Susie do before bringing this material back to her table?

hazard diamond blue = 1, red = 4, yellow = 0, flammability symbol

A. She should make sure the lab table is completely dry.
Incorrect. The diamond does not have any information about the material reacting with water.

B. She should check to make sure there is not an open flame at her lab table.
Correct! This material is very flammable so it should be kept away from all open flames.

C. She shouldn't take it back to her lab table, this chemical should only be used in a fume hood.
Incorrect. The hazard diamond says it has a low health hazard and it does not have a TOXIC sign.

D. She should make sure all other chemicals are off of the lab table, so they do not react with this chemical.
Incorrect. This material has a reactivity of 0 which means it poses no risk of reacting with other chemicals.