At the point when the egg is in the vinegar, you will see a few bubbles framing and in the long run a froth will show up at the outside of the vinegar. The eggshell is comprised of calcium carbonate. The vinegar (a corrosive) responds with the calcium carbonate (a base) creating a salt and a gas called carbon dioxide (these are the air bubbles you see). The vinegar will continue responding with the calcium carbonate until it is totally gone, leaving the egg contained in simply the cell layer.
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