2689400
Description
Question 1
Question
When would you use diffusion?
Answer
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To separate a liquid from a solid
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To dissolve a substance
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To separate gases
Question 2
Question
When would you use chromatography?
Answer
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To separate and purify coloured compounds
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To test a boiling point
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To separate water from salts
Question 3
Question
When would you use filtration?
Answer
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To separate a liquid from a liquid
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To separate solids froms solutions
Question 4
Question
When would you use simple distillation?
Answer
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To separate water from a dissolved salt
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To separate more volatile liquids from less volatile liquids
Question 5
Question
When would fractional distillation be used?
Answer
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To make salt crystals
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To separate a less volatile liquid from a more volatile liquid
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To eat
Question 6
Question
When are crystals formed?
Answer
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When you heat water
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When a solution of crystalline solid is partly evaporated and then allowed to cool
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