Question

1. 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.

Explanation:

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.