Dissolving is process by which a solid or liquid forms a homogeneous mixture with a solvent. When the solvent and the solute mix together, they form a solution. As ions dissolve in a solvent they spread out and become surrounded by solvent molecules. Like substances dissolve other like substances, depending on their chemical polarity.
1. Polar compounds can dissolve other polar compounds and ionic compounds.
For example, water (polar) can dissolve NaCL/Salt (ionic).
Salt before being completely dissolved:
and after...
2. Non-polar compound can only dissolve non-polar compounds.
If you try to mix water (polar) and oil (non-polar), the two won't form a solution.
But oil will dissolve other types of oil, since they are both nonpolar.
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