A zinc penny would dissolve in phosphoric acid, not a copper penny. Zinc reacts with phosphoric acid to form zinc phosphate and hydrogen gas. This reaction does not occur with copper, as copper is a more stable metal and does not react with phosphoric acid in the same way.
Yes, phosphoric acid can react with copper to form copper phosphate and hydrogen gas. This reaction can occur more readily in concentrated solutions of phosphoric acid.
Coke or sprite will change the color of a penny.
The chemical formula for copper(II) chloride is CuCl2 and for phosphoric acid is H3PO4. When copper(II) chloride and phosphoric acid react, copper phosphate is formed, which has the chemical formula Cu3(PO4)2.
Vinegar contains acetic acid. The acid reacts with the outer layer of the penny, which is usually very dull because of oxidation, and removes that layer leaving a new, shiny layer from beneath.
It can be called "Hydrogen Phosphate" so in a way i guess but do you mean phosphorus?
Soda pop is a mild acid, because of dissolved carbon dioxide. Acid dissolves the copper oxide tarnish that darkens the penny's color.
Yes, phosphoric acid can react with copper to form copper phosphate and hydrogen gas. This reaction can occur more readily in concentrated solutions of phosphoric acid.
This is the phosphoric acid.
Coke or sprite will change the color of a penny.
The chemical formula for copper(II) chloride is CuCl2 and for phosphoric acid is H3PO4. When copper(II) chloride and phosphoric acid react, copper phosphate is formed, which has the chemical formula Cu3(PO4)2.
Some strong acid such as H2SO4 (Sulfuric) probably would dissolve copper bronze the quickest.
Vinegar contains acetic acid. The acid reacts with the outer layer of the penny, which is usually very dull because of oxidation, and removes that layer leaving a new, shiny layer from beneath.
[Ca3(PO4)2]
It can be called "Hydrogen Phosphate" so in a way i guess but do you mean phosphorus?
Yes. Dissolution of a copper penny would indeed be a chemical reaction.
Copper dissolves in any oxidising acid like nitric acid.
A copper penny builds up a layer of corrosion on its outsides. Probably copper oxide. The cleaning just dissolves the outer corrosion and leaves a new outer layer of copper. CuO + HNO3 --> Cu(NO3)2 + H2O ... the copper nitrate is dissolved in the acid solution and leaves 'clean' copper behind.