Les molécules - Les atomes
Authored by Kelly Capwell
Chemistry
9th Grade
Used 103+ times
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17 questions
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1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Parmi les formules chimiques suivantes, laquelle ou lesquelles représente-nt un atome?
Na
CO
H20
Cu
H2
2.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Parmi les formules chimiques suivantes, laquelle ou lesquelles représente-nt une molécule:
CH4
S
HCl
O2
Na
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La molécule de méthanol CH3OH possède
1 atome de carbone, 3 atomes d'hydrogène et 1 atome d'oxygène
1 atome de carbone, 4 atomes d'helium et 1 atome d'oxygène
1 atome de carbone, 4 atomes d'hydrogène et 1 atome d'oxygène
1 atome de calcium, 4 atomes d'hydrogène et 1 atome d'or
aucune réponse correcte
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Le modèle moléculaire de l'ammoniac NH3 est
aucun de ces modèles
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle est la formule chimique de cette molécule?
NH4HCO3
CH4N2O
CHCl3
aucune bonne réponse
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quel est le nom exact de cette molécule?
3CHOH
C4HO
CH4O
CH4O
aucune bonne réponse
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle est la formule chimique de l'aspirine?
C9H8O4
O9C8H4
H9O8C4
je ne sais pas
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