Biološko važni spojevi
Quiz
•
Biology
•
9th Grade
•
Hard
Krunoslav Vranić
Used 1+ times
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25 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Koja skupina kemijskih elemenata prikazuje samo mikroelemente?
Kalij, sumpor i natrij
Kalij, sumpor i vodik
Klor, magnezij i molibden
Klor, magnezij i dušik.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Molekula vode je:
polarna molekula zbog negativnog kisikovog atoma
polarna molekula zbog pozitivnog kisikovog atoma
polarna molekula zbog negativnog vodikovog atoma
nepolarna molekula
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kapilarnost kod žive ima:
konkavni meniskus i povišenje visine žive u kapilari
konkavni meniskus i sniženje visine žive u kapilari
konveksni meniskus i povišenje žive u kapilari
konveksni meniskus i sniženje žive u kapilari
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pogledaj sliku i odgovori koja je tvrdnja točna.
Slika 1 prikazuje vodu i konveksni meniskus.
Slika 1 prikazuje živu i konveksni meniskus.
Slika 2 prikazuje vodu i konkavni meniskus.
Slika 1 prikazuje vodu i konkavni meniskus.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jake vodikove veze na površini vode stvaraju silu:
površinske napetosti
adhezije
kohezije
kapilarnosti
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Koja je tvrdnja točna ako je otopina pH vrijednosti 5?
Otopina je kisela i ima više oksonijevih iona.
Otopina je lužnata i ima više oksonijevih iona.
Otopina je kisela i ima više hidroksidnih iona.
Otopina je lužnata i ima više hidroksidnih iona.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Glukoza je:
krvni šećer
mliječni šećer
voćni šećer
kuhinjski šećer
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