HEMIJA
Authored by Svetlana Jovanovic
Chemistry
1st - 2nd Grade
Used 304+ times
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13 questions
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1.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
Koji su od navedenih elemenata metali?
Azot
Aluminijum
Bakar
Ugljenik
Kiseonik
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
U kojem jedinjenju azot ima elektrovalencu +4?
N2O3
NO2
N2O
N2O5
3.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
Od sledećih jedinjenja kiselinu su ( označiti kiseline ):
CO2
NaOH
HCl
NaCl
H3PO4
4.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Označiti baze:
H2CO3
Mg ( OH )2
NaO
Mgo
Al(OH)3
5.
FILL IN THE BLANKS QUESTION
20 sec • 1 pt
Napisati fomulu gvožđe (II)-oksida.
(a)
6.
FILL IN THE BLANKS QUESTION
30 sec • 1 pt
Napisati hemijsku formulu kalcijum-karbonata.
(a)
7.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
Označiti amfoterne okside:
CO
NO2
ZnO
Al2O3
K2O
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