Me : (when heating a test tube or flask,
a)it should remain capped.
b)an experimenter ca...
Biology, 21.12.2019 22:31 jordan84546
Me : (when heating a test tube or flask,
a)it should remain capped.
b)an experimenter can briefly look directly into the tube to make observations.
c)it should remain in the test tube rack.
d)safety goggles should be worn for the duration of the experiment.
Answers: 1
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