Answer:
Dissolve the impure solid in a minimal amount of boiling solvent, cool the solution to form crystals, vacuum filter the solution to collect the pure crystals.
Explanation:
Recrystallization is a process when a solid with impurities is purified. To do this a solvent of the compound we want must be used. We need to use only the quantity necessary to dissolve the compound of interest, otherwise, the solvent will dissolve the impurities or it will interfere in the crystallization.
For most of the solids, the solubility increases with the increase of the temperature, so to speed up the process, heat must be added at the system, or the solvent must be boiling. Then, the solution will be cooled to form the crystals of the compound purified, and then it must be filtered in a vacuum because the crystals can slow down the filtration.
The correct answer is D Elements
Answer: 6100 seconds
Explanation: 6.1 Kiloseconds = 6100 Seconds
⛄ (4)HG
-This is because it has a freezing point below standard temperature.
Answer:
As soon as a front passes a particular location, the weather could change from a steamy maritime tropical air mass to a dry.
Explanation:
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