Hapnik ja oksiidid
8th - 9th Grade
•15 Qs
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Hapnik ja oksiidid
Quiz
•
Chemistry
•
8th - 9th Grade
•
Hard
Maarja Kruus
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15 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
Leia nende gaaside seast 2 õhu põhigaasi.
O2
CO
N2
H2
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Mis on oksiid?
Vesiniku ühend mõne teise elemendiga.
Keemiline ühend, mis sisaldab hapnikku ja teisi aineid.
Hapniku ühend mõne teise elemendiga.
Keemiline ühend, mis sisaldab vesinikku ja teisi aineid.
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Millist ainet on kindlasti vaja põlemiseks?
Süsihappegaasi
Veeauru
Lämmastikku
Hapnikku
4.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
Milline nendest ainetest ei ole oksiidid? (2 õiget vastust)
H2O
H2PO4
KOH
Al2O3
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Mis on hapniku oksüdatsiooniaste ühendis N2O4 ?
IV
-II
II
-IV
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Mis on raua oksüdatsiooniaste ühendis Fe2O3?
-II
III
-III
II
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Mis on Cu oksüdatsiooniaste?
0
I
II
III
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