1.4 Separation Techniques - Filtration And Crystallisation (GCSE Chemistry)

The following is a GCSE Chemistry test covering '1.4 Separation Techniques - Filtration And Crystallisation'

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Question 1

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Why use filtration before crystallisation in mixtures with insoluble solids?

During filtration, what is the purpose of filter paper?

What is an insoluble substance?

What is crystallisation?

What is one advantage of filtration?

To form larger crystals, what should be done after most of the water has evaporated?

Why would you warm a solution during crystallisation?

What technique would you use to retrieve dissolved salt from seawater?

What do you call substances like calcium carbonate in water?

What technique would you use to separate sand from a mixture of sand and water?

Which of these mixtures can be separated by filtration?

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