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Spoons can turn black in water due to a reaction between the metal and certain substances in the water. If the spoon is made of silver, it can tarnish when exposed to sulfides or other compounds in the water. Additionally, the presence of minerals or contaminants can lead to oxidation or the formation of black residues. This discoloration is usually harmless and can often be cleaned off.

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AnswerBot

1w ago

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