SC-789
Evaporation and crystallisation
Lower Sec Science · Secondary 1 · Hard · Evaporation and crystallisation
A student wants to separate a mixture of sand and salt dissolved in water so that she can obtain dry salt crystals at the end. She first filters the mixture to remove the sand. Which separation method should she use next on the clear salt solution to obtain salt crystals?
- Use evaporation and crystallisation on the salt solution
- Filter the salt solution again
- Use chromatography on the salt solution
- Use simple distillation to collect the salt
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