AnswersChemistry Honors AThe Progress of Scientific Knowledge

Tools, Technology, and Measurement Answers

10 verified answers3 views
3

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
4

When students work in a chemistry lab, the location of which item would be the most important for each student to know?

A
broom and dust pan, in case the student needs to sweep up broken glass
B
baking soda, in case the student needs to neutralize an acid spill
C
ice maker, in case the student needs to cool off hot glassware
D
safety shower, in case a chemical is spilled on the student’s body
5

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
6

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.
7

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
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

What are close-toed shoes least likely to provide protection against?

A
hydrogen gas produced during a reaction
B
spilled water from a hot-water bath
C
broken glass from a dropped test tube
D
acid leaking from a cracked beaker

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