is water a pure substance?

Question

please explain..

Answer 1

sure if its purified. Water naturally found is far from pure. It contain many salts and trace minerals.

To really purify, you must distill it a few times and then run it through a nano grade RO (reverse osmosis) filtration system. Even then, its not totally pure but damn close

Answer 2

If water is deionized and distilled then it is essentially pure from a scientist point of view. Water however is an excellent solvent dissolving nearly any chemical with the exception of nonpolar compounds. For the most part normal water, read from the tap, is not going to be pure as it has passed through tubes made of metals, has been treated with chemicals such as fluoride and chloride, and came from a ground storage area made of or containing many minerals.

Answer 3

It depends on where you get the water. Some water, such as the one you drink from a fountain or from your kitchen faucet has things in it. It could have iron from your pipes, flouride and chlorine from the treatment facility, or even other contamination.

Water, in the from of H2O only is in pure form. But water mixes with stuff very easily.

Generally speaking, no. Water is not a purse substance.

It could be though if cleaned and filtered properly.

Answer 4

Pure water is a pure substance. Most water has something dissolved in it, even if it is just chlorine to make it safe to drink.

Answer 5

Sometimes pure, sometimes it is not...It depends...

Let me explain

1) Water is a pure substance at the time of formation
2) Water dissolves soluble salts, ions in to it and becomes impure in river, well, channel
3) Distilled water is pure as it is boiled and condensed
4) You can also syntesize pure water in the laboratory.

Answer 6

Yes. It cannot be broken down into simpler substances by a physical process. It is classified as a compound. Pure substances should be contrasted with "Mixtures" (hint: that's a classic test question).

Answer 7

Most water isn't because it has many other elements from the earth in it. Only water that the scientist make is pure.

Answer 8

Yes - but more to the point, water is an element which occurs naturally in nature. Another point - it is both the hardest and softest element on the planet - you can run your hands through it, and it can bore holes in rocks.

Answer 9

Only when it is in pure form - H2O

Answer 10

theoretically yes, but one finds ions and other things in most water unless it's purified (deionized, distilled etc.)