yatesalexis2 yatesalexis2
  • 10-10-2017
  • Chemistry
contestada

what percentage do the elements hydrogen and helium account forr in the universe

Respuesta :

Rohan11
Rohan11 Rohan11
  • 10-10-2017
they make up about 75% of the universe
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Аноним Аноним
  • 10-10-2017
the answer is about 75%
hope it helps!
Answer Link

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