Which pure substance can be classified as an element?
-h2
-no3
-nacl
-h2so...
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Chemistry, 26.08.2019 20:00 brittanyjacob8
Which pure substance can be classified as an element?
-h2
-no3
-nacl
-h2so4
![ansver](/tpl/images/cats/User.png)
Answers: 2
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