help me figure out science question

Science
Tutor: None Selected Time limit: 1 Day

Oct 22nd, 2015

Thank you for the opportunity to help you with your question!

Salt and sugar dissolve in water to make a solution of water,sugar and salt.

The technique failed(did not work) because , salt and sugar dissolved in water  and remained in the bowel once the water evaporated.

Heating the solution drained the water and what remained was the original mixture of salt and sugar.


Please let me know if you need any clarification. I'm always happy to answer your questions.
Oct 22nd, 2015

thankyou for you help.. just a question.. why is the answer not  "salt and sugar reacted in the water to create new chemical substance that could not be broken apart"?

Oct 22nd, 2015

Hi.This is how he/she could have separated the mixture.

Instead of mixing with water, he/she could have dissolved the mixture with 100% alcohol which dissolves the sugar and leaves salt,filter sugar and  alcohol solution to obtain salt then evaporate the solution to remain with sugar.

I hope this was helpful.I just thought to add it though it was not in the question.

kind regards

Oct 22nd, 2015

because salt and sugar did not react.The substances remained in their form but the problem was the solvent he/she used to dissolve the mixture.

Have I satisfied you?

Oct 22nd, 2015

yes, thankyou very much for the explanation.

Oct 22nd, 2015

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