basically, the zinc electrons in the NaOH solution coat the copper penny and then when you wave it over a Bunsen burner, the two metals form an alloy (a homogeneous mixture with two or more elements) and make brass, not gold.
In practice, no. In theory, you could break down the copper atoms into hydrogen, and fuse them into gold. This would take an insane amount of time an energy, so if you have a supergiant star and a few hundred million years, you can turn anything into gold.
When a penny is heated in a flame, the copper metal reacts with oxygen in the air to form copper oxide. Copper oxide has a black color, but when it is heated at high temperatures, it can react with carbon in the flame to form a thin layer of elemental gold on the penny's surface, giving it a gold color.
No, a copper penny cannot be turned into gold through any known chemical or physical process. Gold is a different element with its own unique properties and cannot be created from copper pennies or any other material.
When gold is dipped into a solution of copper sulfate, a redox reaction occurs where copper ions in the solution gain electrons and are reduced to solid copper metal. The gold does not react and remains unchanged in the solution.
A penny is an alloy because it is a mixture of different metals A penny is not an alloy because it's not really a "mixture" of zinc and copper. Post-1983 pennies are 97.5% zinc core with the remaining 2.5% of copper layer on top. Search for "Make a brass penny" to see how one makes a penny an alloy by heating it up enough to melt and mix the metals, making the penny appear gold.
No, gold is a much harder metal than copper, which is found in pennies. Therefore, a penny is not capable of scratching gold.
Pennies are made of copper and zinc. there is no gold in them
When a penny is heated in a flame, the copper metal reacts with oxygen in the air to form copper oxide. Copper oxide has a black color, but when it is heated at high temperatures, it can react with carbon in the flame to form a thin layer of elemental gold on the penny's surface, giving it a gold color.
In practice, no. In theory, you could break down the copper atoms into hydrogen, and fuse them into gold. This would take an insane amount of time an energy, so if you have a supergiant star and a few hundred million years, you can turn anything into gold.
No, pennies do not contain gold. Modern pennies are mostly zinc with a little copper, older pennies are mostly copper with a little zinc.
No, a copper penny cannot be turned into gold through any known chemical or physical process. Gold is a different element with its own unique properties and cannot be created from copper pennies or any other material.
Yes, all elements are made of atoms.
Any reaction occur when gold is put in copper sulfate.
Gold is more conductive than other atoms (except silver and copper) because of its high concentration of free electrons. Silver and copper are more conductive than gold, but gold has the advantage of being corrosion resistant.
Yes, both a copper penny and a copper large bell can have the same density because they are made of the same material, copper. Density is a physical property of a substance and is determined by the mass of the substance divided by its volume. As long as the copper used in both the penny and the large bell is of the same purity and composition, they can have the same density.
A pfennig is a German "penny" and would not have gold in it. Would normally be brass or copper. If shinned up can look much like gold
It changes from the golden color back to a grey color.