Teme: Voda i Zrak
Quiz
•
Chemistry
•
7th Grade
•
Practice Problem
•
Hard
Dinka Kaluđer
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21 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Reagens za dokazivanje vode je?
bakrov (II)sulfat
modra galica
plavi lakmus papir
crveni lakmus papir
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pri kojoj se temperaturi uz normalan atmosferski tlak voda ledi( kristalizira)?
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Koja voda ima najveću gustoću ,te je u njoj lakše plivati?
vodovodna voda
morska voda
jezerska voda
riječna voda
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
U kojem omjeru nastaju vodik i kisik procesom elektrolize vode?
1:2
2:2
2:1
3:1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Na kojoj nadmorskoj visini će vrelište vode biti najviše?
200 m
1 000 m
3 000 m
6 500 m
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Elektroliza je ?
spontan i endoterman proces
spontan i egzoterman proces
nespontan i endoterman proces
nespontan i egzoterman proces
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Koja svojstva opisuju vodik?
plin,teži od zraka, ne gori, ali podržava gorenje
plin lakši od zraka, zapaljiv, nije otrovan
žutozeleni plin,otrovan
inertan plin, lakši od zraka
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