C- Composition de l'air
a. L'air contient environ 80 % de diazote et 20 %
de dioxygène
b. L'air contient environ 80 % de dioxygène et 20 %
de diazote
c. L'air contient 40 % de diazote, 10 % de dioxygène et
50 %d'autres gaz

By: USER5847
27 Agustus 2025 physique-chimie 5 minutes
4.5
264 views 264 comments 15 shares

Question

Grade: Education Subject: physique-chimie
C- Composition de l'air
a. L'air contient environ 80 % de diazote et 20 %
de dioxygène
b. L'air contient environ 80 % de dioxygène et 20 %
de diazote
c. L'air contient 40 % de diazote, 10 % de dioxygène et
50 %d'autres gaz
Asked by:
264 Viewed 264 Answers

Answer (264)

Best Answer
(26)
Bonjour c’est la réponse a
Answered on 27 Agustus 2025

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