A clear liquid in an open container is allowed to evaporate. after three days a solid residue is left. was the original liquid an element, compound, or mixture? how do you know?

Question

23-08-2017
Chemistry

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A clear liquid in an open container is allowed to evaporate. after three days a solid residue is left. was the original liquid an element, compound, or mixture? how do you know?

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barnuts barnuts · Answer 1 · 2017-09-04T14:34:56+02:00

The clear liquid was allowed to evaporate and after 3 days, only solids are left. Therefore this means that for the 3 days it was exposed to air, some liquid or water perhaps was leaving out of the solution. Therefore this means that the liquid was a mixture. It was a initially a mixture of the solid residue plus the evaporated liquid.

It cannot be an element or a compound since both uniformly evaporates.

Answer:

Mixture