Sugar reaches the copper and they form a physical change
Yes, you can clean a penny with Coca Cola. The acidic nature of the soda can help remove dirt and oxides from the surface of the penny. Simply soak the penny in Coca Cola for a few minutes, then rinse it with water and dry it with a cloth.
You should just soak a PENNY in CoCA CoLA.
coca-cola has a high acidic content, and prolonged exposure can erode the enamel on the teeth
water
Coca-Cola does not have any effect on amalgam. However, it does contain ingredients that can erode the enamel on your teeth if you do not brush them regularly.
Tap water freezes faster than Coca Cola, orange juice, and salt water. Salt water will freeze at a lower temperature due to the presence of salt, while the sugar content in Coca Cola and orange juice also lowers their freezing points compared to plain tap water.
An ice cube of water would melt faster than an ice cube of Coca-Cola because Coca-Cola contains sugar and other substances that lower its melting point, making it melt more slowly than regular ice.
No
Coca-Cola leaves the penny bright and shiny. Coke does this by corroding the copper oxide layer that forms naturally through exposure to the air over the penny's copper plating. While the oxide layer is stable and prevents further reaction of the copper plating, it obscures the shiny copper plating to give the penny a darker, dull appearance. Coke is able to remove the oxide layer on pennies because of its acidity (Coke has a pH of approximately 2.5, similar to lemon juice). Acidity gives it corrosive properties. To be more specific (and a tad uncertain), the phosphoric acid in Coca-Cola likely reacts with the copper oxide layer to remove it.
coco cola
Both work but Coca Cola is the best