
Halkogeni elementi i Dušik
Authored by beren zijagil
Chemistry
11th Grade
Used 46+ times

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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
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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