Valencije atoma i nazivi spojeva
Quiz
•
Chemistry
•
7th Grade
•
Medium

Ana Stazic
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12 questions
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1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Spoj se naziva dušikov(II) oksid. Koja je njegova kemijska formula? Riješit ćemo pitanje pomoću valencija. (Valencija kisika je u tablici, ali u tablici nema dušika. Valencija dušika je promjenljiva - može biti I, II, III, IV i V - zato je sada napisana u nazivu spoja rimskim brojem).
NO
CO
N2O
NO2
2.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Koja je kemijska formula spoja ugljikov(II) oksid? (Valencija ugljika piše u zadanom imenu spoja rimskim brojem)
CO
CO2
C2O
C2O
3.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Za atome čija valencija ne piše u tablici, njihova valencija MORA pisati u imenu. Ugljikov(IV) oksid označava se:
C4O
CO
CO2
CO2
4.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Valencije atoma moramo izjednačiti da bi formula bila točna. Sumporov(IV) oksid označava se:
SO
SO2
SO3
S4O
5.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Sumporov(VI) oksid označava se:
S6O
SO2
SO3
S2O
6.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Dušikov(IV) oksid označava se:
N2O5
N2O3
NO2
NO
7.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Željezov(III) klorid označava se:
PbCl3
FeCl2
FeCl3
CaCl
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