Question

2. If you want to find out if there is something dissolved in a liquid that you could not describe what you could do to separate it from the liquid.​

Answer 1

there is multiple methods

evaporation removes a liquid from a solution to leave a solid material

chromatography involves solvent separation on a solid medium

distillation takes advantage of difference In boiling points

filtration separates solids of different sizes

Answer 2

I would get a drop of it on a piece of plastic and look under a microscope.