
GSL11 CHIMIE
Authored by Château Château Eğitim
Chemistry
11th Grade
Used 1+ times

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41 questions
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1.
OPEN ENDED QUESTION
30 sec • 1 pt
On prépare à 80oC, 500 g d’une solution saturée de NaNO3 puis on la refroidit jusqu’à 10oC. Quelle masse de sel cristallisera ? s(80 oC)=150g/100g et s(10 oC)=80g/100g
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2.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
On dispose de 2 solutions de diiode dans 2 béchers. D'après l'image on peut dire...
qu'il y a la même masse de diode dans les béchers
qu'il y a le même volume
que les concentrations massiques en diiode sont les mêmes
qu'il s'agit de la même solution
3.
OPEN ENDED QUESTION
30 sec • 1 pt
Trouver la solubilité d’une solution saturée de 250g dont le pourcentage massique est 40%.
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4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pour un mélange eau+huile, indiquez les cas qui ne convient pas;
I. Il est hétérogene.
II. On peut les séparer en employent l'ampoule à decanter.
III. On peut les séparer par la distillation.
I
I et II
II et III
III
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4g / 20,4g
4g / 1.7g
6g / 20.4g
20.4g / 1.7g
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Laquelle des paires de substances suivantes est insoluble l'une dans l'autre ?
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Lequel de mélanges suivants ne peux pas être séparé par la filtration?
Sel de cuisine et l’eau
Sciure de bois et l’eau
Poussière de charbon et l’eau
Naphtalène et l’eau
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