* Chemical Reaction: Involves the formation of new substances with different chemical compositions.
* Physical Change: Alters the form or appearance of a substance but not its chemical makeup.
When you dissolve sugar in tea, the sugar molecules are simply dispersing throughout the water molecules. The sugar molecules themselves remain intact; they don't change their chemical structure. You can easily recover the sugar by evaporating the water.
Here's a breakdown:
* Sugar: Consists of carbon, hydrogen, and oxygen atoms bonded in a specific arrangement.
* Water: Made up of hydrogen and oxygen atoms.
* Dissolving: The sugar molecules become surrounded by water molecules, but the sugar and water molecules themselves don't change their fundamental structure.
Think of it this way: You're mixing two things together but not creating something entirely new. You can still separate the sugar and water later, demonstrating that no chemical reaction took place.
