Les autres dispersions
Authored by valerie bonjean
Science
9th Grade
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14 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Les suspensions sont des dispersions d'un solide, sous forme de poudre très fine dans un liquide. Ce mélange est stable grâce à l'ajout d'un stabilisant (ex : gélifiant). PHASE DISPERSEE + PHASE DISPERSANTE + STABILISANT = SUSPENSION. Quelle est la phase dispersée dans une suspension ?
Pigments
Liquide
Gélifiant
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Les mousses sont des dispersions de gaz dans un liquide. Ce liquide peut être une solution ou une émulsion. PHASE DISPERSEE + PHASE DISPERSANTE = MOUSSE. Quelle est la phase dispersée dans une mousse ?
Gaz
Liquide
Émulsion
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Les aérosols sont des dispersions d'un liquide ou de fines particules solides dans un gaz. PHASE DISPERSEE + PHASE DISPERSANTE = AEROSOL. Quelle est la phase dispersée dans un aérosol ?
Liquide ou solide
Gaz
Émulsion
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Remplir le tableau ci-dessous en indiquant la composition de chaque phase. SUSPENSION Phase dispersée Phase dispersante Anticerne Pigments Emulsion E/H Fard à paupière Huile (corps gras) Pigments Gommage mécanique Grains Emulsion H/E, gel Huile exfoliante corporelle G. Quelle est la phase dispersante pour le gommage mécanique ?
Emulsion H/E, gel
Pigments
Grains
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La phase dispersée d’un rouge à lèvre est composée d’un mélange de corps gras (cires, beurres et huiles).
OUI
NON
6.
OPEN ENDED QUESTION
3 mins • 1 pt
Donner des exemples de phase dispersée dans un gommage mécanique.
Evaluate responses using AI:
OFF
7.
OPEN ENDED QUESTION
3 mins • 1 pt
Remplir le tableau ci-dessous en indiquant la composition de chaque phase.
Evaluate responses using AI:
OFF
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