Foundation
Chemistry Foundation
Colloidal and Suspension
Question

A mixture of sodium chloride and calcium carbonate is separated using the steps given. In which order should the steps be carried out?

1, 2 then 3
2, 1 then 3
1, 3 then 2
3, 1 then 2
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Solution
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First, we dissolve mixture, only Nacl will dissolve and calcium carbonate forms precipitate.
Now, we filter this solution and calcium carbonate separates.
Then we use evaporation to separate Nacl from the solution.

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