
Medžiagos kiekis
Quiz
•
Chemistry
•
8th Grade
•
Hard

Daiva Vaitiekūnienė
Used 12+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Pasirinkite teisingą atsakymą:
Vieno molio medžiagos kiekio masė vadinama moline mase
Vieno gramo medžiagos kiekis vadinama moline mase
Vieno molio medžiagos kiekio masė vadinamas atomine mase
Vieno molio medžiagos kiekio masė vadinama Avogadro skaičiumi
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Pasirinkite teisingą atsakymą:
Viename molyje deguonies O2 yra 12,04 1023 molekulių
Viename molyje deguonies O2 yra 6,02 1023 molekulių
Viename molyje deguonies O2 yra 1 molis molekulių
Viename molyje deguonies O2 yra 2 molekulės
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Medžiagos dalelių skaičiui apskaičiuoti naudojame formulę:
N = n x N A
m = n x M
n = N : N A
n = m : M
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Kokia kalcio oksido Mr ?
102
94
62
56
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Apskaičiuokite 2 mol azoto masę ( naudokite formulę)
34
28
13
65
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Apskaičiuokite 5 mol vandens masę ( M vandens 18 g/mol )
90 g
80 g
11 g
14 g
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Molinės masės matavimo vienetas yra :
g
mol
cm
g/mol
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