
ATF 10 Chimie
Authored by Château Château Eğitim
Chemistry
10th - 11th Grade
Used 2+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
4g / 20,4g
4g / 1.7g
6g / 20.4g
20.4g / 1.7g
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
On fait réagir 14,4g de HCl avec une certaine masse de CuO. Après la réaction il se forme CuCl2 et de l'eau. Sachant que HCl est en défaut et que le nombre de moles total après la réaction est de 0,8 mol déterminer la masse initiale de CuO. (Cu:64 O:16 Cl: 35 H:1)
12
24
36
48
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
La décomposition de KClO3 donne KCl et le gaz O2.On a obtenu 6,72L de gaz oxygène à partir de 48g de KClO3. Quel a été le rendement de la réaction ? (K:39 Cl:35 O:16)
25%
50%
75%
100%
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Quel volume de CO2 obtiendra-t-on par combustion de 60 g de carbone si le rendement de la réaction est de 80% ? (C:12 O:16)
11,2
22,4
44,8
89,6
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
La solubilité de KCLO3 à 80°C est de 35 g/100 g . Quelle masse de KClO3 sera dissoute dans 108 g de solution saturée à 80°C ?
14
28
35
38
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Quelle masse de solution à 5% sera contiendra 3,2g de soluté ?
24
56
48
64
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Parmi les 4 solutés données dans le tableau, combien sont solubles dans l'eau ?
1
2
3
4
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