A mixture that can be separated by evaporation: 1) gasoline and water 2) an aqueous solution of sodium chloride
| June 19, 2021 | education
A mixture that can be separated by evaporation: 1) gasoline and water 2) an aqueous solution of sodium chloride 3) river sand and chalk 4) coal powder and wood sawdust
1) Gasoline and water – cannot be separated, since when the water evaporates, gasoline will also evaporate.
2) An aqueous solution of sodium chloride – can be divided, since when the solution is evaporated, the salt will settle in crystals at the bottom of the container.
3) River sand and chalk – not possible, since when heated, these substances will remain solid and undivided.
4) Coal powder and wood sawdust – it is impossible, since when heated, these substances will remain solid and undivided.
Answer: 2) An aqueous solution of sodium chloride.
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