Redoxifolyamatok és elektrokémia
Quiz
•
Chemistry
•
9th Grade
•
Medium
Erzsébet Dóka
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42 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Milyen reakciótípusba tartozik a magnézium égése?
2Mg + O2 = 2 MgO
bomlás
disszociáció
gázfejlődés
egyesülés
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mit jelent az oxidáció?
A régebbi értelmezés szerint oxigénfelvétel
Hidrogénnel történő reakció
Az oxidációs szám csökken
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Az oxidációs szám csökken
oxidáció
redukció
4.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Zn + Cl2 = ZnCl2
A cink oxidálódik
A cink redukálódik
A klór redukálódik
A klór oxidálódik
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
H2 + Cl2 = ...... HCl
Milyen együttható hiányzik a HCl elől?
2
1
3
4
6.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
...........Al + .......O2 = 2 Al2O3
Milyen együtthatók hiányoznak a kémiai egyenletből?
4, 3
2, 3
3, 2
1, 2
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
4Al +3 O2 = 2Al2O3
Melyik elem oxidálódik?
Al
O2
Al2O3
egyik sem
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