Sodium chloride can be separated from rock salt by first adding water to the mixture to dissolve the sodium chloride. The separation then takes place in two stages: evaporation followed by filtration distillation followed by decanting filtration followed by decanting filtration followed by evaporation
Question
Sodium chloride can be separated from rock salt by first adding water to the mixture to dissolve the sodium chloride. The separation then takes place in two stages: evaporation followed by filtration distillation followed by decanting filtration followed by decanting filtration followed by evaporation
Solution
The process of separating sodium chloride from rock salt involves the following steps:
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Add water to the mixture: Sodium chloride is soluble in water, while rock salt is not. By adding water to the mixture, the sodium chloride will dissolve, leaving the rock salt behind.
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Filtration: After the sodium chloride has dissolved, the mixture can be filtered. The rock salt, being insoluble, will remain in the filter, while the sodium chloride solution will pass through.
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Evaporation: The sodium chloride solution that passed through the filter can then be evaporated. As the water evaporates, the sodium chloride will be left behind.
So, the correct sequence is filtration followed by evaporation.
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