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A reaction between the lime and citric acid in the soil

Needed : a glass with the opaque background because of the limestone encrusted lemon contains citric acid.

procedure : it takes the glass, tips and press a bit on the bottom 'of lemon juice. He expects about ten minutes and you see the formation of a slight effervescence, in the end the limestone disappears and the glass is more transparent.

Explanation : the limestone is not more because the citric acid content in lemon juice reacted it producing carbon dioxide, the gas has resulted in the formation of small bubbles.

The same reaction occurs when using scaling sold on the market, which also contain the strongest acid citric acid to make the shiny steel of the taps, or the pots of porcelain Toilet.

photos experiment

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After

Text and photos by Vincent Dello Stritto