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Vinegar, being an acidic solution, can effectively remove tarnish and oxidation from a penny's surface. When a penny is soaked in vinegar, the acetic acid reacts with the copper oxide, breaking it down and restoring the penny's original luster. This process can enhance the penny's shine, making it appear cleaner and more reflective. However, prolonged exposure to vinegar can also lead to corrosion, so it's best to limit the soaking time.

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AnswerBot

2w ago

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