Ugljik i njegovi spojevi
Quiz
•
Chemistry
•
8th Grade
•
Practice Problem
•
Medium

Željka Magdić
Used 23+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Što prikazuje slika?
strukturu dijamanta
strukturu grafita
strukturu fulerena
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Što prikazuje slika?
strukturu dijamanta
strukturu grafita
strukturu fulerena
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Atomi kojeg kemijskog elementa grade dijamant, grafit i fuleren?
vodika
ugljika
kisika
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Što su alotropske modifikacije?
dvije ili više struktura istog kemijskog elementa
dvije različite formule kemijskog spoja
5.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Označi svojstva dijamanta (2 točna odgovora):
crno siva boja
visoko talište i vrelište
dobra toplinska vodljivost
provodi električnu struju
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Zašto grafitom možemo pisati po papiru?
zato što je crno sive boje
zato što je mekan
zato što je slojevite građe pa povlačenjem po papiru ostavljamo slojeve grafita na papiru
zato što je tekuća tvar
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2C(s) + O2(g) --> 2CO(g) je jednadžba prikaza:
gorenja ugljika uz dovoljan pristup zraka
gorenja ugljika uz nedovoljan pristup zraka
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