Powietrze
Quiz
•
Chemistry
•
7th Grade
•
Practice Problem
•
Hard
Lidia Łukasik
Used 789+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ile procent objętościowych powietrza stanowi azot
78
21
1
74
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Balony i sterowce napełnia się helem ponieważ:
jest to najlżejszy gaz
jest to najlżejszy bezpieczny gaz
jest to gaz palny
jest to gaz wybuchowy
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Gaz, który spala się charakterystycznym dźwiękiem
tlen
wodór
azot
argon
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Co to jest powietrze?
Jednorodna mieszanina gazów.
Niejednorodna mieszanina gazów.
Jednorodna mieszanina pyłów.
Niejednorodny związek chemiczny.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ile procent tlenu znajduje się w powietrzu?
0,04%
21%
78%
0.06 %
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Gazem, który nie pali się, ale podtrzymuje palenie jest:
tlen
wodór
dwutlenek węgla
azot
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Pierwiastki i związki chemiczne, które powstają w wyniku reakcji to:
produkty
substraty
reagenty
izotopy
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