Final answer:
The bond formed between water molecules with the addition of salt is a hydrogen bond, not an ionic, covalent, or metallic bond. These hydrogen bonds between water molecules and ions explain why salt dissolves in water, and contribute to water's ability to dissolve many substances.
Step-by-step explanation:
The bond between water molecules formed by the addition of salt is known as a hydrogen bond. Water molecules are covalently bonded, meaning the oxygen and hydrogen atoms within a single water molecule (H2O) share electrons. However, when salt is introduced, the ionic compounds, such as sodium chloride (table salt), dissolve into their constituent ions (positively charged sodium and negatively charged chloride).
These ions can then interact with the polar water molecules. Water molecules themselves can form hydrogen bonds with each other, where the partially positive hydrogen atom of one water molecule is attracted to the partially negative oxygen atom of another water molecule. This interaction is particularly important in determining the properties of water, such as its high boiling point and its ability to dissolve many substances.
When salt is added to water, the ionic bonds within the salt are broken, and the individual sodium and chloride ions are surrounded by water molecules, a process facilitated by hydrogen bonding between the water molecules and the ions.