
Hapnik ja oksiidid
Authored by Tom Maksimov
Chemistry
8th Grade
Used 2+ times

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13 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mis on hapniku molekuli tähis? (1p)
O
O2
O3
Oxygen
2.
FILL IN THE BLANK QUESTION
1 min • 2 pts
Nimeta 2 põhjust, miks on meil hapnikku vaja. (2p)
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Oksiidid on ained, mis koosnevad kahest elemendist, millest üks on ... (1p)
Vesinik
Hapnik
Lämmastik
Süsinik
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mis on oksüdatsiooniaste lihtaines? (1p)
0
1
2
3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mis on hapniku oksüdatsiooniaste ühendis? (1p)
0
-2
2
-1
1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
P4O10
dekafosfortetraoksiid
dekafosforpentaoksiid
tetrafosforoksiid
tetrafosfordekaoksiid
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
CaO
Kaltsiumoksiid
Kaltsium(III)oksiid
Kaltsiumdioksiid
Kaltsium(I)oksiid
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