How can distillation be used to prepare pure water from tap water?

Answer 1

http://en.wikipedia.org/wiki/Distilled_water

You may be able to go to www.google.com and type in different phrases and come up with a picture of a still used for distillation of water.

Answer 2

Distilled water is the most common form of purified water.

anything else

Answer 3

I'm not sure distilled was is the most common anymore. It was at one time but I suspect deionized water now is the most common, especially for laboratory work.

Answer 4

so what should i write then

Answer 5

As I read the question, it isn't asking you to tell what distinguishes distilled water from some other kind of water or which is more common. The question is asking you to describe the PROCESS for purifying water by using distillation. If you read the link I gave you AND go to google and type in some phrases you can find a picture, I'm sure, of a still. Then you will know how it works. Here is a different site that may explain it a little better than the former one.
http://www.chemhelper.com/distillation.html