
Na početku 8. raz. - pokusi
Quiz
•
Chemistry
•
1st Grade
•
Medium

Valentina Abramović Andlar
Used 10+ times
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13 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Reagens za dokazivanje ugljikovog dioksida u izdahnutom zraku je
Vapneno mlijeko
Bakrov(II) sulfat
Lugolova otopina
Vapnena voda
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kemijski naziv vapnenca je
kalcijev oksid
kalcijev karbonat
magnezijev karbonat
kalcijev hidroksid
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Produkti žarenja vapnenca su
kalcijev oksid i ugljikov dioksid
magnezijev oksid i vodik
kalcijev oksid i kisik
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Čvrsta tvar nastala žarenjem ljušture školjkaša (vapnenca) je
crvene boje
plave boje
bijele boje
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Čvrsta tvar nastala žarenjem ljušture školjkaša (vapnenca) u vodi ima lužnata svojstva koja smo dokazali indikatorom
fenolftaleinom
metiloranžom
plavim lakmusovim papirom
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Plava krutina modra galica se zagrijavanjem razgrađuje na dvije jednostavnije tvari
bijeli bakrov(II) sulfat i vodu
rozi bakrov(II) sulfat i ugljikov dioksid
bijeli bakrov(II) sulfat i ugljikov dioksid
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Reagens za dokazivanje vode je bijela krutina koja u reakciji s vodom daje plavu krutinu modru galicu. Kemijski naziv navedenog reagensa je
bakrov(II) sulfat
magnezijev karbonat
natrijev klorid
kalcijev sulfat
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