Solutions 1

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The following figure shows a sample of solid Na₂SO₄ ready to be dissolved in water.

 

Click on each of the following figures and observe an animation

 

 

Which one best represents the changes that occur in the solution process?.

	Correct. In the presence of water the ions are distributed regularly, surrounded by water molecules. Ion-dipole (water) interactions are not shown.
	Wrong. This animation shows the water molecules around the solid sample without separation of ions in the aqueous medium.
	Wrong. The animation shows that ions are separated but not water molecules around the ions.
	Wrong. The animation shows that ions are separated from the solid but left in the bottom of the glass. No water molecules around the ions.

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