14003175
Beschreibung
Quiz von Yi Ying Chan, aktualisiert more than 1 year ago
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Erstellt von Yi Ying Chan
vor mehr als 8 Jahre
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Frage 1
Frage
When a substance is impure, the melting point increases.
Antworten
- True
- False
Frage 2
Frage
What are the methods we can use to determine if a substance is pure?
Antworten
-
Chromatography.
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Distillation.
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Checking melting and boiling points.
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Looking through a microscope.
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Reacting it with other substances.
Frage 3
Frage
When is purity important?
Antworten
-
Making orange juice.
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Baby food.
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Drinking water.
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Creating pillowcases.
Frage 4
Frage
Impure substances melt and boil over [blank_start]a range of temperatures[blank_end].
Antworten
-
a range of temperatures
Frage 5
Frage
What industries require substances to be pure?
Antworten
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Sports industry.
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Medicine industry.
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Computer industry.
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Music industry.
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Beauty industry.
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Food industry.
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