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Hapnik ja oksiidid

Authored by Tom Maksimov

Chemistry

8th Grade

Used 2+ times

Hapnik ja oksiidid
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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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