Biology

Biology, 18.10.2019 04:00, batmanmarie2004

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.

answer

Answers: 1

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Biology, 08.08.2019 21:30, vicjenj528

When heating a test tube, covering it with a cork prevents injury from bubbling chemicals. select the rewording that makes the statement true. 1. when heating a test tube, covering it with a cork causes chemicals to react evenly. 2. when heating a test tube, covering it with a cork prevents inhalation of toxic fumes. 3. when heating a test tube, covering it with a cork prevents vapors from catching fire. 4. when heating a test tube, covering it with a cork causes pressure to build up.

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Biology, 28.08.2019 17:30, Gheaton1889

When heating a test tube, covering it with a cork prevents injury from bubbling chemicals.select the rewording that makes the statement true.1. when heating a test tube, covering it with a cork causes chemicals to react evenly.2. when heating a test tube, covering it with a cork prevents inhalation of toxic fumes.3. when heating a test tube, covering it with a cork prevents vapors from catching fire.4. when heating a test tube, covering it with a cork causes pressure to build up.

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Do you know the correct answer?

Me : (

when heating a test tube or flask,

a)it should remain capped.

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