AnswersFL-2000310-Biology 1 Sem 1 - FlexAssessing Claims and Evidence

Safety in Science Answers

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1
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What information is given in the MSDS for acetic acid?

A
the mass of acetic acid that is consumed in an experiment
B
the volume of acetic acid that is needed for an experiment
C
the cost of acetic acid at various concentrations
D
the reactivity of acetic acid with various chemicals
2
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The MSDS for chloroform indicates that it is a clear liquid that has a pleasant smell and substantial vapor pressure. People should avoid inhaling its vapors, and it is sensitive to light. Malik needs 10 mls of chloroform for an experiment. According to this information, how should he safely pour the chloroform?

A
He should locate the chloroform stored in a transparent container in chemical storage and pour directly into his beaker from that location.
B
He should locate the chloroform stored in a transparent container in chemical storage and should take it to the fume hood to pour.
C
He should locate the chloroform stored in a dark container in chemical storage and should take it to the fume hood to pour.
D
He should locate the chloroform stored in a dark container in chemical storage and pour directly into his beaker from that location.
3

Denise heats a beaker of dilute acid on a hot plate in a fume hood. What should Denise wear to best protect herself when she transports the beaker to a balance outside the hood?

A
heat-proof gloves, a lab coat, and close-toed shoes
B
goggles, a lab coat, and close-toed shoes
C
goggles, a lab coat, and heat-proof gloves
D
goggles, a lab coat, heat-proof gloves, and close-toed shoes
6

Ben will be conducting an experiment in which he reacts metals with different concentrations of acid in test tubes. What should Ben wear to best protect himself during the experiment?

A
heat-proof gloves, a lab coat, and close-toed shoes
B
a lab coat, chemical gloves, and close-toed shoes
C
goggles, a lab coat, and heat-proof gloves
D
goggles, a lab coat, chemical gloves, and close-toed shoes
7

Hiro does not see a puddle of liquid on the lab table and accidentally touches the liquid. What should Hiro do next?

A
He should tell his teacher about the spill and clean it up with paper towels.
B
He should tell his teacher about the spill and rinse his hand in the sink.
C
He should tell the other students and clean up the spill with paper towels.
D
He should tell the other students and rinse his hand in the sink.
8

When should a lab coat, safety goggles, and gloves be worn in the laboratory?

A
always, no exceptions
B
always, unless the teacher instructs otherwise
C
only when the teacher says to wear them
D
never in chemistry labs
9

Emily spills concentrated sodium hydroxide solution on her lab bench. What she should do first?

A
Notify her teacher.
B
Clean up the spill herself.
C
Clean up the spill with her classmates.
D
Read the MSDS for sodium hydroxide.
10

Where in the laboratory is long, unrestrained hair most likely to be a safety concern?

A
near an open flame
B
close to a fume hood
C
next to a concentrated sodium chloride solution
D
by a cabinet that contains flammable liquids

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