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kimi me zgjedhje

Authored by Blerina Laze

Chemistry

12th Grade

Used 2+ times

kimi me zgjedhje
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20 questions

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1.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

elementet e grupit te VB perioda e peste ka si elektrone valentore

5s2p5

5s24d1

5s24d2

5s24d3

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Ne perberjen C2H4 lidhja dyfishe midis atomeve te karbonit perbehet nga

dy lidhje sigma

dy lidhje pi

nje lidhje sigma nje pi

vetem nje sigma

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

reaksioni shkon deri ne fund nese si produkt formohet

nje perberje ne gjendje te gazte

nje kripe plotesisht te tretshme

jone H3O+ i nje acide te forta

jone OH- i nje baze te tretshme

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

reaksionet quhen redoks ne rast se atomet elementeve

vetem japin elektrone

vetem marrin elektrone

as japin dhe as marrin elektrone

disa japin dhe disa marrin elektrone

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

ne atomin e nje elementi ,elektroni i fundit sipas rradhes se mbushjes me elektrone ka keto vlera te numrave kuantike n=3 ,l=1,m=-1,ms=-1/2.Numri atomik Z i tij eshte

20

18

16

14

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Masa molare e substances ,kur dime se tretesira e saj me perqendrim 8.75% e ka dendesine 1.08 gr/ml dhe perqendrimi molar i tij eshte 1.8M

52.5gr/mol

51 gr/mol

50.7 gr/mol

51.3gr/mol

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Ne reaksionin 2NO + 2H2=N2+2H2O eshte gjetur barazimi i shpejtesise V
\lceil NO2\rceil^2\times\lceil H2\rceil
=K NO22×H2\lceil NO2\rceil^2\times\lceil H2\rceil  CIili nga reaksionet e meposhteme percakton rendin me te ngadalshem ?

2NO+3/2H2=NO2+NH3

2NH3+5NO2=3H2O+7NO

H2O2+ H2= 2 H2O

2NO+ H2 =N2 +H2O

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