emilyfloyd13 emilyfloyd13
  • 03-09-2020
  • Chemistry
contestada

is helium gas a mixture or pure substance

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tatamendez
tatamendez tatamendez
  • 03-09-2020
An element is a pure substance as well, because if we fill up a balloon with just helium gas, it will only contain helium atoms. On the periodic table of elements, helium is element number 2 , and so that should tell you that it's an element of course.
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