Hapnik

Hapnik

8th Grade

12 Qs

quiz-placeholder

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Hapnik

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Assessment

Quiz

Chemistry

8th Grade

Hard

Created by

Egle Lellep

Used 12+ times

FREE Resource

12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Kui palju hapniku on õhus?

21%

78%

0,04%

0,9%

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Mis on osooni valem?

O2

O3

O

O4

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Hapnik on elusorganismidele vajalik....

fotosünteesiks

hingamiseks

põlemiseks

4.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Hapniku toodavad....

taimed

loomad

seened

samblikud

5.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Hapnikku saab laboris toota......

hapnikku sisaldavate ainete lagundamisel

vee elektrolüüsil

õhust

metallidest

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Hapnik on õhust ....

kergem

raskem

7.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Hapnikku saab koguda....

läbi vee kuna ta ei lahustu vees

katseklaasi ava ülespoole kuna hapnik on õhust raskem

katseklaasi ava allapoole kuna hapnik on õhust kergem

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