Quelle équation est correctement équilibrée?
Questions divers

Quiz
•
Chemistry
•
1st Grade
•
Easy

Emmanuelle Buelens
Used 1+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
La valence de l'atome d'azote est
I
II
III
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
L'ion magnésium a pour formule:
Mg+
Mg2-
Mg2+
Mg-
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Quelle est la bonne formule moléculaire?
NaCl2
Na2Cl
NaCl
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Choisis la bonne formule pour calculer la concentration massique.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quel modèle de Bohr correspond à la structure électronique de l'ion béryllium?
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cet icône de sécurité signifie:
Explosif
Inflammable
Gaz sous pression
Comburant
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