
Kemijske reakcije i mol
Authored by lidija vojvodic
Science
2nd Grade

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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Koja je mjerna jedinica za količinu tvari u kemijskim reakcijama?
Kilogram (kg)
Mol (M)
Centimetar (cm)
Sekunda (s)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Koliko iznosi Avogadrov broj?
3.145 x 10^22
7.891 x 10^25
5.432 x 10^21
6.022 x 10^23
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Koliko milimola dušikove kiseline sadrži isti broj molekula kao i milimol kalcijeva bikarbonata?
4
3
2
1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Koliko milimola dušične kiseline je potrebno u reakciji 2HNO3 + Ca(HCO3)2?
1
2
3
4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Koja je molekulska masa dušikove kiseline?
63
45
52
78
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