
1MMV - Oxydoréduction
Authored by Nicolas Bauland
Chemistry, Science
3rd Grade
Used 139+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cu2+ est:
un ion
un gnon
un atome
un atchoum
2.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Cu2+ + 2 e- --> Cu est:
une oxydation
une réduction
une oxydoréduction
une demi-équation
3.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Un couple s'écrit:
ox/red
red/ox
Cu2+/Cu
Zn/Zn2+
4.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
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
30 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
30 sec • 1 pt
Du métal fer s'est transformé en ions fer II, cela s'écrit:
Fe --> Fe2+
Fe2+ --> Fe
Fe --> 2 e- + Fe2+
Fe + 2 e- --> Fe2+
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dans l'image de l'atome, les particules représentées par des billes bleues sont:
des protons
des électrons
des neutrons
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