Réactions d'oxydo-réduction
Quiz
•
Chemistry, Physics, Science
•
9th - 12th Grade
•
Practice Problem
•
Hard
Amélie Derlet
Used 29+ times
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35 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Cu2+ est:
un ion
un cation
un atome
un anion
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Cu2+ + 2 e- → Cu est :
une oxydation
une réduction
une oxydoréduction
une réaction acide-base
3.
MULTIPLE SELECT QUESTION
1 min • 2 pts
Un couple oxydant/réducteur, aussi appelé couple rédox, s'écrit :
Et coche un exemple.
ox/red
red/ox
Cu2+/Cu
Zn/Zn2+
4.
MULTIPLE SELECT QUESTION
1 min • 2 pts
Le tube contenant la solution bleue:
contient des ions Cu2+ car elle bleue.
contient un morceau de fer qui a rouillé.
contient un morceau de fer se recouvre de métal cuivre (Cu).
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Cu2+ est un atome de cuivre qui a:
gagné deux électrons.
perdu deux électrons.
perdu deux protons.
perdu deux protons.
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Du métal fer s'est transformé en ions fer II, cela s'écrit:
Fe → Fe2+
Fe2+ → Fe
Fe → Fe2+ + 2 e-
Fe + 2 e- → Fe2+
7.
MULTIPLE SELECT QUESTION
2 mins • 2 pts
Quelles sont des équations correctes ?
Cu + Fe → Cu2+ + Fe2+
Fe + Cu2+ → Fe2+ + Cu
Ag+ + Fe → Fe2+ + Ag
2 Ag+ + Fe → Fe2+ + 2 Ag
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