polar and nonpolar....ionic and covalent?

Question

1) do ionic substances dissolve in polar liquids?

2) do covalent substances dissolve in nonpolar liquids?

3) do ionic substances dissolve in nonpolar liquids?

please help!!! answer any that you can! thanks!

Answer 1

1) do ionic substances dissolve in polar liquids?

Yes, but there are some liquids that have very low polarity that may not make very good solvents.

2) do covalent substances dissolve in nonpolar liquids?

Sometimes, but it depends on the substance being dissolved and the non-polar liquid. For instance sugar will dissolve in gasoline, but the plastic a gas can is made of will not dissolve. Both the sugar and the plastic are covalent substances.

3) do ionic substances dissolve in nonpolar liquids?

Typically no, Although there is a process called super critical fluid extraction where this does happen.

http://en.wikipedia.org/wiki/Supercritical_fluid_extraction