If so, why? I do not get this. Please, I am a high school freshman trying to pass! And no, this is not the exact question on my homework, and no, I am not being lazy, I just hope some one will be able to describe it in laymans terms.
2006-09-14 10:12:49 · 7 answers · asked by Kathryne 1 in Science & Mathematics ➔ Chemistry
Dissolving is a physical change.The sugar spreads out evenly among the water molecules. If you want to get them back, evaporate the water. Evaporation is a physical change. Only the water turns to a gas and leaves the sugar. hemical reaction the materials combine or decompose so that you do not have the same materials present, and can not get them back without another chemicl reaction.
2006-09-14 10:46:27 · answer #1 · answered by science teacher 7 · 0⤊ 0⤋
No, it is not a chemical reaction, as the sugar or water does not change into a different material. The sugar dissolves into the water, and thus it is a physical change. The sugar isn't becoming something else, it is just dissolving. Water as well remains as water.
2006-09-14 17:16:13 · answer #2 · answered by retired_dragon 3 · 0⤊ 0⤋
No, it's still sugar dissolved in water. The test is whether something entirely new comes out of the combination of molecules (not sugar, not water) for it to be a "chemical reaction"
2006-09-14 17:16:29 · answer #3 · answered by Anonymous · 0⤊ 0⤋
No, sugar dissolving in water is a physical reaction. The sugar remains sugar, and the water remains water.
Sugar does however have the interesting characteristic o negative heat of solution. That means that the solution gets cooler than the water you started out with as the sugar dissolves...
2006-09-14 17:19:30 · answer #4 · answered by Helmut 7 · 1⤊ 0⤋
No, Its a physical reaction, because you can always take the sugar out of water by boiling it. It would still be sugar. If it was a chemical reaction, it would never be sugar again after the reaction.
2006-09-14 17:20:07 · answer #5 · answered by Anonymous · 1⤊ 1⤋
yes. Sugar is a chemical. Anything that causes a chemical to change is a chemical reaction. Making KoolAid is a chemical reaction.
Edit- Hmmmm maybe I'm wrong. Everyone else says it's not. I don't know. I took High School Chemistry, but it was ten years ago. I thought that anytime a chemical changes shape or form, it's a chemical reaction.
2006-09-14 17:20:56 · answer #6 · answered by Answer Schmancer 5 · 0⤊ 2⤋
No. because your products are the same as your reactants. The sugar is still there. It is only dissolved. No chemical change.
2006-09-14 17:21:16 · answer #7 · answered by bmgebmge 1 · 0⤊ 0⤋