
Luftens gaser Ke år7
Authored by Ola Vitalisson
Chemistry
7th Grade
Used 3+ times

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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vilka två gaser finns det mest av i atmosfären?
Kväve och Syre
Syre och Koldioxid
Kväve & Koldioxid
Kväve & Ozon
Ozon & Koldioxid
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ungefär hur mycket kväve finns det i luften?
78%
21%
0,9%
0,04%
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vilken gas behövs för att något ska brinna?
Syre
Kväve
Koldioxid
Väte
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
När syre reagerar med andra ämnen bildas...?
oxider
koldioxid
kväve
ozon
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vad använder man kvävgas till?
Djupfrysa livsmedel
Inom sjukvården
Bilda kolsyra
Bryta ner ozonlagret
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vad heter den gas som alla växter behöver i fotosyntesen?
Koldioxid
Syre
Kväve
Ozon
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vad släpper växterna ut vid fotosyntesen?
Syre
Koldioxid
Kväve
Ozon
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