
Exam Chap. 1
Authored by Gabriel Larouche
Science
8th Grade
Used 15+ times

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27 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Les formules chimiques suivantes sont celles de substances pures. Laquelle n’est pas un élément?
H2
S8
NO
Br2
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Quel trio de substances, parmi les suivantes, ne contient que des éléments?
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Parmi les énoncés ci-dessous, lequel ne correspond pas au modèle atomique
de John Dalton ?
Les atomes sont invisibles à l’œil
Les atomes contiennent un noyau
Les atomes sont la base de toute matière
Les atomes ne peuvent pas se diviser
4.
REORDER QUESTION
1 min • 1 pt
À l'aide du tableau périodique, classe en ordre croissant de leur masse (plus petit au plus grand), les éléments suivants
Azote
Cuivre
Hydrogène
Fer
Néon
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Nom de l'élément ayant une masse atomique de 56u (réponse en minuscule)
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Nom de l'élément ayant une masse atomique de 23u (réponse en minuscule)
7.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Symbole chimique de l'azote
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