3. susan makes the following entry in her notebook: "on friday we were given a blue liquid in a shallow container. we placed it on the windowsill over the weekend. on monday morning there was no liquid left, but the dish had some solid blue stuff in it." a. was the blue liquid in the dish a heterogeneous mixture, a solution, or a pure substance? explain your choice.

  B. Solution

Explanation:  According to the question statement, Susan wrote in her notebook that it was a blue liquid. Therefore, from a chemistry point of view, it was a solution and not a heterogeneous mixture. Then, the solvent was evaporated after leaving the solution for 72 hours at the windowsill. The solute (blue color most likely) however was not able to evaporate with solvent and left behind.

Example: if you leave the KMnO4+water solution for a few days, water will evaporate thus leaving behind purple crystals of KMnO4.

B. Solution

Explanation:

According to the question statement, Susan wrote in her notebook that it was a blue liquid. Therefore, from a chemistry point of view, it was a solution and not a heterogeneous mixture. Then, the solvent was evaporated after leaving the solution for 72 hours at the windowsill. The solute (blue color most likely) however was not able to evaporate with solvent and left behind.

Example: if you leave the KMnO4+water solution for a few days, water will evaporate thus leaving behind purple crystals of KMnO4.