Why does a skittle dissolve in water?

A Skittle dissolves in water because water molecules are attracted to the sugar and gelatin molecules that make up the candy. The water molecules form hydrogen bonds with the sugar and gelatin molecules, pulling them apart and causing the Skittle to dissolve.

Here are some of the interactions that occur when a Skittle dissolves in water:

* Hydrogen bonding: The hydroxyl group (-OH) of water molecules forms hydrogen bonds with the carbonyl groups (C=O) of the sugar molecules and with the amino groups (-NH2) of the gelatin molecules. These hydrogen bonds hold the molecules of the Skittle together.

* Dipole-dipole interactions: Dipole-dipole interactions occur between the polar water molecules and the polar sugar and gelatin molecules. These interactions also hold the molecules of the Skittle together.

* Van der Waals forces: Van der Waals forces are weak intermolecular forces that occur between all molecules. These forces contribute to the overall attraction between the water molecules and the sugar and gelatin molecules.

When the water molecules are heated, they move more quickly and collide with the sugar and gelatin molecules more frequently. This increased energy input weakens the interactions that hold the Skittle together, allowing the candy to dissolve more quickly.