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aliya0001 [1]
3 years ago
5

Which mechanical waves needs a medium to travel through?

Chemistry
1 answer:
Crazy boy [7]3 years ago
4 0
The correct answer is c
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In column chromatography (microscale), after loading it with solvent and adsorbent and prior to loading the sample, what level s
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Explanation:

You should allow the solvent to drop to the level of the adsorvent, so it would never run dry.

When you let your sample to run dry it will never finish to flow from the adsorbent depending of it polarity.

Water should not be used because it can dissolve the adsorbent.

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Is a solution with a pH greater than 7 acidic, alkaline or neutral?
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