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Is Cooking An Egg A Physical Or Chemical Change And Why?

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Cooking an egg would be a chemical change. To understand why, you need to know the difference between a physical and chemical change. A physical change is a change that can be reversed, like water can turn into ice, but you can turn the ice back into water. A chemical change is a change that can't be reversed, like a match. Once you light it, it burns and once a burnt match always a burnt match. You can't change the burnt match back into the original match it was before the burning. Like the match, you can't turn a cooked egg back into a raw egg.
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It would be a chemical change. Once the egg is cooked it can no longer be put back to what it was before it was cooked ( being a raw egg ) making the change chemical.

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