Kurš elements dotajā reakcijā ir oksidētājs: Zn + 2HCl ----> ZnCl2 + H2

Red-ox procesi

Quiz
•
Chemistry
•
11th Grade
•
Medium
Rihards Klūga
Used 2+ times
FREE Resource
13 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Cinks
Ūdeņradis
Hlors
Šī nav reducēšanās-oksidēšanās reakcija
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Kurš elements dotajā reakcijā reducējas: 2Na + 2H2O ----> 2NaOH + 2H2
Nātrijs
Skābeklis
Ūdeņradis
Šī nav oksidēšanās-reducēšanās reakcija
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Kurš elements dotajā reakcijā oksidējas: Zn + CuSO4 ----> ZnSO4 + Cu
Cinks
Varš
Sērs
Skābeklis
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Kurš elements dotajā reakcijā ir reducētājs: 2Mg + O2 ----> 2MgO
Magnijs
Skābeklis
Magnijs un skābeklis
Šī nav reducēšanās-oksidēšanās reakcija
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Kāda ir sēra oksidēšanās pakāpe sērskābē?
+4
+6
-2
0
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Kāda ir alumīnija oksidēšanās pakāpe Al2O3?
-2
+2
-3
+3
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Kāda ir hlora oksidēšanās pakāpe sālsskābē (hlorūdeņražskābē)?
0
+1
-1
nezinu
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