What will happpen if there was a small amount of water in a cup and i add salt what will happen

The sight of ordinary salt dissolved in water is, in all likelihood, entirely familiar to you, as the phenomenon literally dominates the globe. Over two-thirds of Earth's surface is covered by ocean water, which is notably saline, or "salty," in character. ("Sal" is the Latin word for salt.)

Table salt is made of the ionic compound sodium chloride, which consists of the chemical elements sodium and chlorine. You probably learned from unintentional play at the kitchen table as a child that if you sprinkle salt into a glass of pure water, the salt disappears after a time; the more salt you add, the longer this takes, and it may require some shaking or stirring to bring about.

Solids dissolving in a liquid solvent (usually water in chemistry experiments) create a solution, and salt dissolving in water is a classic example of how a polar solute behaves in a polar solvent such as H2O.

there are two significant figures.