Ispravak Tvari
Quiz
•
Chemistry
•
1st Grade
•
Practice Problem
•
Easy
Pamela B
Used 4+ times
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7 questions
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1.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Koji znak upozorenja prikazuje slika?
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
FeCl2 je:
kemijski spoj
homogena smjesa
heterogena smjesa
elementarna tvar
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Mramor je:
kemijski spoj
homogena smjesa
heterogena smjesa
elementarna tvar
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Magla je:
kemijski spoj
homogena smjesa
heterogena smjesa
elementarna tvar
5.
OPEN ENDED QUESTION
3 mins • 1 pt
Kaja i Stella su izvele pokus. U čašu su stavili bijeli šećer (C11H22O10) i žutu sumpornu kiselinu (H2SO4). U kemijskoj reakciji tvar je pocrnila i izlučio se ugljik.
PROUČI SKICU TE NAVEDI ako je nešto krivo napisano (navedi točno) i ako nešto nedostaje.
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6.
OPEN ENDED QUESTION
30 sec • 1 pt
Zašto s vremenom jabuka pocrni - koja tvar daje crnu nijansu?
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7.
OPEN ENDED QUESTION
45 sec • 1 pt
Slijedeće elemente zapišite u elementarnom obliku:
vodik, aluminij, brom, dušik
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