* Physical Changes: Alter the form or appearance of a substance but don't change its chemical composition.
* Examples: Melting ice, boiling water, crushing a rock.
* Chemical Changes: Result in the formation of new substances with different chemical properties.
* Examples: Burning wood, rusting iron, baking a cake.
When you boil table salt, you're simply increasing its temperature. The salt itself doesn't change its chemical makeup. It remains sodium chloride (NaCl). The only change is that the salt is now in a molten state (liquid). If you were to cool the molten salt, it would solidify back into its original form.
Important Note: While table salt doesn't change chemically when boiled, it does have a very high melting point (about 801°C or 1474°F). This is why it's difficult to boil table salt in a typical kitchen setting.
