Is cooking an egg an example of a physical or a chemical change?

Answer 1

Cooking an egg is a chemical change because the proteins in the egg become denatured through exposure to heat. There is also a physical change because the denaturing of the proteins causes them to become solid at room temperature.

Answer 2

Cooking an egg would be a chemical change. Many people often believe physical change ; however, when an egg is cooked you can not put it back into the egg it originally was. Leading to an answer of being a chemical change.

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The above is incorrect.

No, it is a physical change. The proteins forming the substance of the egg "denature" above about 60 degrees Celsius. Proteins are complexly folded molecules and the vibration caused by the application of heat causes them to unravel - Once untraveled they tangle up to form a solid and the processes irreversible but because the change is a change in shape it is physical not chemical. No new chemicals are made.

Answer 3

It is a physical change. The proteins forming the substance of the egg "denature" above about 60 degrees Celsius. Proteins are complexly folded molecules and the vibration caused by the application of heat causes them to unravel - Once untraveled they tangle up to form a solid and the processes irreversible but because the change is a change in shape it is physical not chemical.

Answer 4

Because cooking involve chemical reactions.

Answer 5

It is a chemical change because some chemical transformations are involved.

Answer 6

Yes