Is frying an egg a physical or chemical change?
Frying an egg is a chemical change. Here's why:
* Proteins change structure: The heat from frying causes the proteins in the egg white and yolk to denature. This means their structure changes, causing them to solidify and change texture.
* Color change: The yolk changes color from pale yellow to a more vibrant yellow due to chemical reactions.
* New substances form: Some of the fats in the egg react with the heat, creating new compounds with different properties.
In contrast, a physical change only alters the appearance or form of a substance, not its chemical makeup. Examples include:
* Boiling water: Water changes from a liquid to a gas (steam), but it's still H₂O.
* Crushing a can: The can changes shape, but its chemical composition remains the same.
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