You are worried that a solid substance has dissolved in a beaker of water in a lab. What would be a way to separate the substance from the water?(1 point)

Question

Responses

Use a magnet to draw out the solid substance from the water.
Use a magnet to draw out the solid substance from the water.

Pass the solution through a filter to let the dissolved substance separate.
Pass the solution through a filter to let the dissolved substance separate.

Pour the liquid along a rough surface that would catch the solid particles but not the water.
Pour the liquid along a rough surface that would catch the solid particles but not the water.

Boil the water away, leaving the substance behind in the beaker.

Answer 1

The best way to separate a solid substance that has dissolved in water is to boil the water away, leaving the substance behind in the beaker. This process allows the water to evaporate, leaving the dissolved substance (if it is a solid) as a residue in the beaker.

Other options, such as using a magnet or filter, wouldn't work for a dissolved substance as it is not in solid form or because dissolved substances pass through filters. Pouring the liquid along a rough surface would not effectively separate a dissolved substance either.