
Chapitre 5 : La qualité de l'eau
Authored by Pauline BATS
Chemistry
12th Grade
Used 1+ times

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14 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
L'eau est un :
solvant apolaire.
solvant polaire.
soluté.
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Au cours d'une dissolution, dans un premier temps, les molécules d'eau séparent les ions : c'est la ............................................
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Au cours d'une dissolution, dans un second temps, les molécules d'eau entourent les ions : c'est l' ............................................
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Enfin, au cours d'une dissolution, les molécules d'eau dispersent les ions : c'est la ...................................................
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
La solubilité s est la masse ....................................... de composé qui peut se dissoudre dans un litre d'eau.
minimale.
la plus faible.
maximale.
6.
MULTIPLE SELECT QUESTION
1 min • 1 pt
La solubilité s s'exprime en :
g/L
L/g
g.L-1
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
L'équation de dissolution du chlorure de magnésium MgCℓ2(s) dans l’eau est :
MgCℓ2(s) → Mg+ + Cℓ2-
Mg2+ + 2Cℓ- → MgCℓ2(s)
MgCℓ2(s) → Mg2+ + 2Cℓ-
MgCℓ2(s) → Mg2+ + Cℓ2-
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