Here's why:

* Ionic Compound: Sodium bromide is an ionic compound, meaning it's formed by the electrostatic attraction between positively charged sodium ions (Na+) and negatively charged bromide ions (Br-).

* Polar Solvent: Water is a polar solvent, meaning it has a positive and negative end due to the uneven sharing of electrons. This polarity allows water molecules to surround and interact with the charged ions in NaBr, effectively pulling them apart and dissolving them.

In general, ionic compounds are typically soluble in polar solvents like water.