erik1228 erik1228
  • 20-01-2020
  • Chemistry
contestada

In the atmosphere up to an altitude of about 80 km, oxygen (O2) makes up about __________ % and nitrogen (N2) comprises about _________% of the gases by volume:

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Eduard22sly
Eduard22sly Eduard22sly
  • 21-01-2020

Answer: Oxygen makes up about 21% and nitrogen makes up 78%

Explanation:

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