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) Responses 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. Pass the solution through a filter to let the dissolved substance separate. Pass the solution through a filter to let the dissolved substance separate. Boil the water away, leaving the substance behind in the beaker. Boil the water away, leaving the substance behind in the beaker. Use a magnet to draw out the solid substance from the water.

Question

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) Responses 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. Pass the solution through a filter to let the dissolved substance separate. Pass the solution through a filter to let the dissolved substance separate. Boil the water away, leaving the substance behind in the beaker. Boil the water away, leaving the substance behind in the beaker. Use a magnet to draw out the solid substance from the water.

Answer 1

If you are concerned that a solid substance has dissolved in a beaker of water, passing the solution through a filter will not separate the dissolved substance; filtration is generally used to separate undissolved solid particles from a liquid. To separate a dissolved solid from water, you would typically evaporate or boil the water away, leaving the solid substance behind. Therefore, the correct way to separate a dissolved solid substance from water would be:

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

This process is known as evaporation and it's often used in laboratories to recover dissolved substances from solvents. If you want to keep the water as well, you would use distillation, which captures the water vapor and condenses it back into the liquid, leaving the dissolved substance in the distillation flask.