Here's why:
* Polarity: Water is a polar molecule, meaning it has a slightly positive and slightly negative end. This polarity allows it to attract and dissolve other polar molecules like sugars and salts.
* Hydrogen Bonding: Water molecules can form strong hydrogen bonds with each other and with other polar molecules, further enhancing its solvating ability.
* Limitations: Water cannot dissolve nonpolar molecules like oils and fats. These substances are held together by weak van der Waals forces, which are not strong enough to overcome the attraction between water molecules.
Therefore, while water is a very good solvent for many substances, it is not a universal solvent because it cannot dissolve all substances.
