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Halkogeni elementi i Dušik

Authored by beren zijagil

Chemistry

11th Grade

Used 46+ times

Halkogeni elementi i Dušik
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20 questions

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1.

MULTIPLE SELECT QUESTION

20 sec • 1 pt

Nestalni ili promjenjivi sastojak zraka je:

argon

vodena para

dušik

kisik

2.

FILL IN THE BLANK QUESTION

20 sec • 1 pt

Kisik ima _____________(broj) alotropske modifikacije

3.

MULTIPLE SELECT QUESTION

10 sec • 1 pt

Sumpor tvori molekulu:

S2

S4

S6

S8

4.

FILL IN THE BLANK QUESTION

20 sec • 1 pt

Proces suprotan fotosintezi zove se _______________ ___________________

5.

MULTIPLE SELECT QUESTION

10 sec • 1 pt

Media Image

Na slici je prikazana molekula

kisika

ozona

dušika

selenija

6.

FILL IN THE BLANK QUESTION

20 sec • 1 pt

Kako se zove postupak razdvajanja dviju ili više tekućina iz njihove smjese, a temelji se na njihovim različitim vrelištima? _______________________________________________

7.

MULTIPLE SELECT QUESTION

20 sec • 1 pt

Zaokruži jednadžbu kemijske reakcije koja prikazuje laboratorijski način dobivanja kisika:

2KClO3​→2KCl+3O2​

2H2O(l) → 2H2(g) + O2(g)

6CO2 + 6H2O→ C6H12O6 + 6O2

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