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What are the two classes of pure substances?
pure substance are divided as elements and compounds
Expert answered|2703ayush|Points 2|
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Asked 38 days ago|6/9/2019 11:29:04 AM
Updated 30 days ago|6/17/2019 6:10:09 AM
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Pure substances are classified into elements and compounds.
Examples of elements : Iron, Silver, Gold
Examples of compounds : Water, Carbon dioxide, vinegar
Added 30 days ago|6/17/2019 6:10:09 AM
Rated good by abhishekgade, Rated bad by abhishekgade
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Your source?
Added 38 days ago|6/9/2019 11:52:02 AM
I STUDIED IT IN HIGH SCHOOL
Added 38 days ago|6/9/2019 11:58:14 AM
Everybody who works on here (including Moderators) must abide by the site rules, which includes providing an online source which validates the facts in an answer. Your account may be suspended if you fail to comply with this and other rules.
Added 38 days ago|6/9/2019 12:05:13 PM
okay i get it but do i need to give source for basic answers too
P.S. i am new here
do help me
Added 38 days ago|6/9/2019 12:08:10 PM
I know you're new, but newbies have to pass a test which is supposed to show you understand the site rules! It's safest to give a source for every answer. You may know stuff, but Moderators have to check everyone's answers, and we may not know what you know, so we use your source as a means of checking the facts - it is our job to "confirm" answers as correct. In this way the site improves. The only exception is if you answer a math question, in which case you must show your working, but don't have to provide a source. If you start complying with the site rules, I will revoke your official warning.
Added 38 days ago|6/9/2019 12:20:54 PM
Thanks a lot ... I will comply with the site rules
I am quite grateful for your help
Please revoke my warning as soon as you feel suitable
P.s i will give required link (source) from now on
Thanks a lot again for guidance
Added 38 days ago|6/9/2019 12:30:03 PM
Thanks for paying attention. I will keep an eye on your account and hopefully will soon be able to revoke your warning. All the best.
Added 38 days ago|6/9/2019 1:02:12 PM
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