Ground water has some minerals dissolved in it. If you heat this water, collect the vapor in another container, and then cool it, you will get pure, or distilled, water. What makes this process a physical change?



It forms a new substance (minerals), which is a physical change.



It forms a new substance (water vapor), which is a physical change.



It changes the color of water, which is a physical change.



It changes the molecular structure of water, which is a physical change.



It separates dissolved substances, which is a physical change.

Respuesta :

Since there is no "new" chemicals made during this process, it is considered a physical change. Distillation is a process of separating dissolved solids or liquids with different boiling points without chemically changing anything.

Color change, formation if a new substance or altering molecular structure are all general signs of chemical change.

Therefore, the last answer choice looks like the best answer.

Hope that helps!
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