Vesinik ja hapnik
Quiz
•
Chemistry
•
8th Grade
•
Practice Problem
•
Medium
Katrin Soika
Used 8+ times
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26 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Millist ainet on vaja põlemiseks?
vesinikku
lämmastikku
hapnikku
süsihappegaasi
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kui palju on õhus hapnikku?
78%
32%
18%
21%
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Millise aine kuumutamisel oleks võimalik saada laboris hapnikku?
KClO3
H2S
KCl
H2O
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mis ainet on vaja põlemiseks?
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kui palju on õhus lämmastikku?
78%
32%
18%
21%
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kas vesinik on õhust raskem või kergem?
kergem
raskem
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kas hapnik on õhust raskem või kergem?
kergem
raskem
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