* Polarity: Water molecules are polar, meaning they have a slightly positive end (near the hydrogen atoms) and a slightly negative end (near the oxygen atom).
* Ionic Bond: Sodium ions (Na+) are positively charged.
* Electrostatic Attraction: The opposite charges attract. The slightly negative oxygen end of the water molecule is attracted to the positive sodium ion. This is an example of an electrostatic interaction.
This attraction is what allows sodium chloride (NaCl) to dissolve in water. The water molecules surround the sodium and chloride ions, separating them from each other and keeping them in solution.