← Chemistry (0620)
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Separation techniques
Foundation
2 marks
What technique would you use to separate a mixture of sand and salt, and describe the steps.
A
Dissolve in water; filter to remove sand; evaporate filtrate to recover salt
B
Heat the mixture — sand melts before salt
C
Use a magnet to separate sand from salt
D
Add acid to dissolve only the salt, then filter
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Separation techniques — Chemistry (0620) | Smartzi