You have three drinks in front of you. You know how they were made, but are unsure which one has the highest concentration of juice crystals. The first drink has 10 g of juice crystals dissolved in
50 mL of water. The second drink has 15 g of juice crystals dissolved in 100 mL of water. The third drink has 6 g
of juice crystals dissolved in 25 mL of water.
What was the most concentrated drink? How did you determine this since all three drinks had different
amounts of solvent?

I would say that the third one(6 h with 25mL) has the most because when the mL are multiplied to equal the other the grams of crystals will be more than the original grams. For example is you would multiply 25mL of water and 6g of juice crystals by two the mL would be equal for the first equation however the crystals from the third equation will be more. Also if you multiply 25mL of water and 6g of juice crystals by four to equal the second equation the water would be equal however the crystals in the third equation will be more.

Yes it would be a physical change.

Is there a picture or answer choices?