it erodes it to make it smaller
Lemon cleans pennies the best because of the acid in the juice.
The acid in lemon juice helps to dissolve the copper-oxide coating made from the penny's copper and the air's oxygen.
Putting a penny in lemon juice would cause a chemical change because the lemon juice reacts with the copper in the penny to create copper oxide, which changes the chemical composition of the penny.
The citric acid reacts with the oxidation on copper.
The juice's acidity reacts with the copper in the penny, causing it to corrode and form a greenish-blue patina. This is due to the chemical reaction between the acids in the juice and the copper in the penny.
The acids in the lemon juice eat away at the rust on the penny
How a lemon lights up a LED light is lemon juice has acid (a.k.a acidic juice) so when u connect zinc and copper to the lemon since they are conductors energy will flow from the acid to the copper or zinc and then it will flow through wires and the energy will be transformed into light energy and will be used by the LED light.
like it is trrue yeah sure...
No.......
A new penny is partially made from bright, shiny copper. But after a while, it loses its shine because the copper mixes with the oxygen in the air and makes a coating called an oxide. When you put the penny in lemon juice, the acid in the lemon chemically removes the oxide, and you're left once again with a bright copper penny.
Copper oxide is basic in nature.Lemon or tamarind is acidic.Hence, when we rub tarnished copper vessel with lemon juice or tamarind, the basic copper oxide reacts with acid(citric acid) present in the lemon or tamarind to form a salt which is washed away with water.Hence,the vessel gets cleaned.
what is the conversion of concentrated lemon juice to the juice of a real lemon(in teaspoon)