1. Sugar (Sucrose): Sugar is a common example of a soluble substance. When you stir sugar into water, the sugar molecules become surrounded by water molecules and disperse throughout the solution.

2. Salt (Sodium Chloride): Salt is another classic example. The ionic bonds holding the sodium and chloride ions together are broken by the polar water molecules, allowing the ions to dissolve.

3. Ethanol (Alcohol): Ethanol, the type of alcohol found in alcoholic beverages, mixes readily with water. This is because ethanol molecules are also polar, allowing them to form hydrogen bonds with water molecules.