
Minerali i kemijske reakcije - kviz

Quiz
•
Chemistry
•
8th Grade
•
Hard
katarina sabolić
FREE Resource
6 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Koji je najrašireniji prirodni mineral u kojem se nalazi kalcijev karbonat?
Kvarc
Vapnenac
Granit
Mramor
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Što su polimorfi? Navedi polimorfe vapnenca.
Tvari koje imaju različite kemijske formule
Tvari koje se ne mogu promijeniti
Kemijske tvari koje se ne mijenjaju
Tvari koje imaju jednake kemijske formule, ali različiti raspored ioni
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Koja se otopina koristi za dokazivanje ugljikovog(IV) oksida?
Vodikov peroksid
Natrijev klorid
Kalcijeva lužina (vapnena voda)
Kalijev hidroksid
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Navedi svojstva sode (natrijeva karbonata).
Vrlo dobro topljiv u vodi, vodena otopina je kisela
Vrlo dobro topljiv u vodi, vodena otopina je lužnata
Slabo topljiv u vodi, vodena otopina je kisela
Slabo topljiv u vodi, vodena otopina je lužnata
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Gdje se sve upotrebljava natrijev hidrogenkarbonat (soda bikarbona)?
Samo u medicini
Samo u tekstilnoj industriji
Samo u prehrambenoj industriji
U prehrambenoj industriji, medicini, tekstilnoj industriji
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Što su po kemijskom sastavu stalaktiti i stalagmiti?
Bakrov(II) karbonat
Natrijev karbonat
Magnezijev karbonat
Kalcijev karbonat
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