
Composition de l'air
Authored by bénédicte HENNINOT
Chemistry
7th - 8th Grade
Used 28+ times

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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
Qui a découvert la composition de l'air?
James Watt
Antoine Lavoisier
Ampère
Volta
2.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
A quel siècle a eu lieu la découverte de la composition de l'air?
16ème
17ème
18ème
19ème
3.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
L'air est ...?
un corps pur
un mélange homogène
un mélange hétérogène
un composant pur
4.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
L'air est composé en majorité...
de dioxygène
de dioxyde de carbone
de diazote
d'eau
5.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
Le pourcentage de dioxygène dans l'air est de :
78%
21%
50%
80%
6.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Quel est le pourcentage de diazote?
78%
21%
50%
80%
7.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Que contient l'air en plus du dioxygène et du diazote?
de l'hydrogène
du dioxyde de carbone
de l'hélium
du fer
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