Quiz mélange, solution, pH, séparation des mélanges
Quiz
•
Science
•
7th Grade
•
Practice Problem
•
Easy
Amélie Pépin
Used 34+ times
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25 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si on dissout du sel dans de l’eau, on forme (un ou une) …
Mélange hétérogène
Solution
Soluté
Solvant
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si on dissout du sel dans de l’eau, le sel constitue (le ou la) …
Soluté
Solvant
Solution
Mélange
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Procédé qui permet de séparer des substances en laissant reposer le mélange, puis en le transvidant délicatement.
Centrifugation
Filtration
Distillation
Décantation
Évaporation
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Association évidente de plusieurs substances : on peut observer différents constituants.
Mélange homogène
Mélange hétérogène
Solution
Substance pure
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Procédé qui permet de séparer des substances en raison de leur point d’ébullition différent. On récupère tous les constituants.
Filtration
Évaporation
Distillation
Décantation
Tamisage
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Procédé qui permet de séparer des substances en faisant tourner le mélange très rapidement.
Centrifugation
Essorage
Filtration
Décantation
Distillation
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Procédé qui permet de séparer des substances en faisant passer le mélange dans un papier percé de trous microscopiques.
Évaporation
Tamisage
Distillation
Décantation
Filtration
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