23. you are doing an evaporation experiment of an unknown liquid. when you heat the liquid and evaporate it…
23. you are doing an evaporation experiment of an unknown liquid. when you heat the liquid and evaporate it, a white crystal solid is left behind as a residue on your dish. after some other tests you confirm it is a solution. what type of matter is the original unknown liquid? a mixture because you separated it physically and it is a solution. a compound because you separated it chemically it is a solution. an element because it could not be separated, like all solutions. it cannot be determined because no experiments were conducted.
Answer
Brief Explanations:
A solution is a homogeneous mixture. Evaporation is a physical separation method. Since the original liquid was separated physically into a solid residue and the evaporated part, and it was confirmed to be a solution, it is a mixture. Compounds are separated chemically, elements cannot be separated into simpler substances by physical or chemical means under normal conditions, and experiments were conducted here so it can be determined.
Answer:
A. A mixture because you separated it physically and it is a solution.