
kimi 11 konkurs
Authored by Blerina Laze
Chemistry
10th - 12th Grade
Used 6+ times

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11 questions
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1.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Elementi I cili e shnderron energjine kimike ne elektrike eshte
· Elementi galvanic
Elementet elektrolitik
element elektrokimik
element voltaik
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Gjate elektrolizes se tretesires ujore te NaNO3 me elektroda pasive clirohet
Na dhe H2
H2 dhe O2
Na dhe O2
N dhe Na
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Metali I cili nuk cliron H2 kur tretet ne HCl eshte
Zn
Fe
Ag
Ca
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Jepet reaksioni CH4+Cl2=CH3Cl+HCl.Duke ditur se energjite e lidhjeve te reaktanteve dhe produkteve jane sipas rradhes
C-H 410 KJ, Cl-Cl 242 Kj ,C-Cl 340 KJ,H-Cl 431 Kj ,vlera e DH se reaksionit eshte
270 Kj
-270Kj
-119Kj
119Kj
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Për reaksionin që zhvillohet në kushte standarde: N2(g) + 3H2(g) → 2NH3(g), ∆H= –92 kJ .Entalpia standarde e formimit të nje moli amoniakut është :
-46 Kj
-92 Kj
46 Kj
92 Kj
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Një element galvanik është i ndërtuar nga elektroda standarde e magnezit (E0Mg2+/ Mg = - 2,37 V) dhe elektroda standarde e argjendit
(E 0 Ag + / Ag = + 0,80V). Forca elektromotore e këtij elementi është
3.17 v
-3.17 v
1.57
-1.57
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Ne cilen nga perberjet e meposhteme klori shfaq numrin e oksidimit +7
KCl
KClO
KClO3
KClO4
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