Jednostavna čista supstanca je

Hemija-završni ispit (1.deo)

Quiz
•
Chemistry
•
7th - 8th Grade
•
Medium
Magdalena Točaković
Used 11+ times
FREE Resource
38 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
morska voda
natrijum-hidroksid
voda
natrijum
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Kristali natrijum-hlorida (kuhinjske soli) izgrađenisu od:
atoma i molekula
katjona i molekula
anjona i molekula
katjona i anjona
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Pijaća voda sa česme je:
hemijski element
hemijsko jedinjenje
homogena smeša
heterogena smeša
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Kada od dve supstance pravimo homogenu smešu taj postupak se može nazvati:
sinteza
analiza
rastvaranje
oksidacija
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Čime treba držati epruvetu da bi se supstanca u njoj bezbedno zagrevala:
metalnim mašicama
rukavicama
drvenom štipaljkom
prstima u gornjem delu epruvete
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Koji deo aparature za ceđenje omogućava razdvajaje smeše na filtrat talog?
stakleni štapić
levak
čaša
filter-hartija
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Jedno od navedenih svojstva supstance ne može se odrediti uz pomoć čula. Koje je to svojstvo?
boja
magnetičnost
agregatno stanje
miris
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