Nemetali
Authored by Dragana Tomic
Chemistry
8th Grade
Used 2+ times
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7 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Azot ima primenu :
za konzerviranje hrane
za punjenje akumulatora
za sterilizaciju suvog voća
u aparatima za gašenje požara
2.
FILL IN THE BLANK QUESTION
20 sec • 1 pt
Koja alotropske modifikacija ugljenika provodi električnu struju?
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
potpunog sagorevanja ugljenika
nepotpunog sagorevanja ugljenika
4.
FILL IN THE BLANK QUESTION
20 sec • 1 pt
Koji gas lakši od vazduha je zapaljiv a ima ga u svemiru ?
5.
MULTIPLE CHOICE QUESTION
20 sec • Ungraded
Sumpor, fosfor, hlor i fluor se ne rastvaraju dobro u vodi zbog toga što su to :
polarne supstance
nepolarne supstance
6.
DRAW QUESTION
20 sec • Ungraded
Nacrtaj između dva atoma kiseonika odgovarajuću kovalentnu vezu u njegovom molekulu :
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Na kojoj slici je prikazan sumpor?
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