Question

7.

Identify the types of information that are necessary to communicate with emergency responders.

Select one or more:

• How the incident happened

• Any chemicals involved in an incident

• Any other hazards present in the lab

• The history of safety incidents in the lab

10. In lab, you may need to evaluate the odor or smell of a chemical.

What is the best way to smell a chemical sample?

Select one:

• Vigorously shake the sample until the smell travels to you.

• Hold the sample under your nose and slowly sniff.

• Use your hand to gently waft the smell toward you.

• Put your head in a fume hood as you heat the sample in it.

11. In general, which characteristics are necessary for a location to be suitable for chemical storage?

Select one or more:

• dark

• poorly-ventilated

• warm

• dry

• cool

17. When should lab participants look at the Safety Data Sheet (SDS) of a substance?

Select one:

• While working with the substance in lab

• Only if the substance is perceived to be dangerous

• Before using the substance

• After completing work with the substance

22. Which is NOT a good source of information about the hazards that affect waste disposal in a chemistry lab?

Select one:

• The chemical Safety Data Sheets

• Your instructor’s directions

• The chemical bottle labels

• Your lab partner

25. When should you start a new chemical waste container in the lab?

Select one:

• When you accidentally spill chemicals down the side of the current container

• When the contents of the current container completely fill the container to the brim

• When the contents of the current container are a couple inches below the brim of the container

• When you need to dispose of another chemical that is compatible with chemicals in the current container

29. What should you do every time before you leave the lab?

Select one or more:

• Remove your gloves.

• Wash your hands.

• Turn off the lights.

• Remove your labcoat, if you are wearing one.

33. Determine when you should remove your goggles in the lab room.

Select one:

• When everyone in the room is done handling any chemicals or glassware

• Whenever your goggles become foggy or uncomfortable

• Whenever you need to lean in close to get a volume reading

• When you have finished cleaning up your chemicals and glassware

Answer 1

ANSWER(7):-

option a,b and c are correct.

(a) How the incident happened.

(b) Any chemicals involved in an incident.

(c) Any other hazards present in the lab.

ANSWER(10):-

option (b) Use your hand to gently waft the smell toward you. is the best method.

ANSWER(11):-options (a) dark , (d) dry and (e) cool are correct.

ANSWER (17):- option (c) before using the substance is correct.

ANSWER (22):- option (d) your lab partner is correct.

ANSWER (25):- option (c) When the contents of the current container are a couple inches below the brim of the container . is correct.

ANSWER (29):- options

(a) Remove your gloves.

(b) Wash your hands.

(d) Remove your labcoat, if you are wearing one. are correct

ANSWER (33):- option (a) When everyone in the room is done handling any chemicals or glassware. is correct.

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