anonymous
  • anonymous
Which of the following is a pure substance? Pure gold, pure milk, pure water, pure seawater, pure sand. And how do you know?
Chemistry
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
Well, rule some out. Which ones do you know aren't? That is, if you do know any of them aren't.
anonymous
  • anonymous
Hello?
anonymous
  • anonymous
Well sand is obviously not..right?

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anonymous
  • anonymous
Sorry..
anonymous
  • anonymous
It's fine, and no it isn't. Anything else?
anonymous
  • anonymous
What do they mean by pure substance here?
anonymous
  • anonymous
I mean like how can I know?
anonymous
  • anonymous
What they mean by Pure substance, is something that can't be split into different things. An example is..|dw:1350413254215:dw| The tree, it has leafs, wood, and so on.
anonymous
  • anonymous
Oh wait! I read something about pure substance that it may be compound or element
anonymous
  • anonymous
Mhmm.
anonymous
  • anonymous
http://chemistry.about.com/od/moleculescompounds/f/What-Is-A-Pure-Substance.htm
anonymous
  • anonymous
This is confusing >.<
anonymous
  • anonymous
Well.. Let me think of how to put it.
anonymous
  • anonymous
They're all pure except one?
anonymous
  • anonymous
Lets say, you have milk, alright? If you add cereal to it, it's no longer just milk. You're turning adding onto it. A pure substance is something that is only of one thing. Like..Say you have oxygen. Oxygen isn't a mixture of gasses, it's simply Oxygen. Nothing else but. That's a pure substance.
anonymous
  • anonymous
No, No. All of them aren't pure, besides one.
anonymous
  • anonymous
Gold isn't pure?
anonymous
  • anonymous
water isn't pure?
anonymous
  • anonymous
sand isn't pure?
anonymous
  • anonymous
Well.
anonymous
  • anonymous
Okay lets take your example you can add hydrogen to oxygen and it's no longer just oxygen.. right?
anonymous
  • anonymous
Water isn't pure, it has other things in it such as sand and chlorine. Minerals, all in all.
anonymous
  • anonymous
And, yes.
anonymous
  • anonymous
But, what is gold?
anonymous
  • anonymous
Ahhh! I get it! -I think- So pure means that it's only like one thing or element that can't be broken down more
anonymous
  • anonymous
Gold is an element.. so it's pure?
anonymous
  • anonymous
Yes. ^^"
anonymous
  • anonymous
Gold is only gold.
anonymous
  • anonymous
Yay! Thanksss LOOAADSSSSSSS :D
anonymous
  • anonymous
Course. ^^"

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