prestonpd11 prestonpd11
  • 18-08-2020
  • Chemistry
contestada

which is a pure substance helium in a balloon

Respuesta :

nayomi36
nayomi36 nayomi36
  • 22-08-2020

Answer:

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

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