It is a chemical change because chemical reactions are involved; copper become hydrated copper carbonate.
Chemical.
Yes it is a chemical change Because colour is changing and a new substance is forming and it's irreversible.
Copper turns green due to a chemical reaction with oxygen and other elements in the environment, forming a layer of copper oxide and copper carbonate on the surface. This process is known as oxidation and is a chemical change.
It is chemical. The copper in bronze turns green when it oxidizes.
The color change of copper to green is a chemical change. This is due to the formation of a green patina on the surface of the copper, typically caused by oxidation reactions with the air and moisture.
It is a chemical change.
Chemical.
Chemical because it is being exposed to another compound and forming a new substance
First, copper doesn't "turn green," it reacts with oxygen in the air to form copper oxide. This is a chemical change, because copper oxide is a substance that was not there before.
Examples of solids in a chemical change include baking soda (sodium bicarbonate) turning into carbon dioxide gas and solid copper turning into copper sulfate solution when reacting with sulfuric acid.
Yes it is a chemical change Because colour is changing and a new substance is forming and it's irreversible.
No its a chemical change because the acid in the rain reacts with the copper in the statue having a reaction oxidizing it and turning it green.
Copper turns green due to a chemical reaction with oxygen and other elements in the environment, forming a layer of copper oxide and copper carbonate on the surface. This process is known as oxidation and is a chemical change.
"chemical"
it is used as a catalyst in chemical reactions
It's a chemical change. Copper oxidizes to form copper oxide, which is similar to iron rusting. A color change very often indicates a chemical change.
Yes, hammered copper is a physical change. When copper is hammered, its shape and size change, but its chemical composition remains the same.