chemical - due to copper contact with oxygen
copper oxide
Chemical change
If you use a abrasive to scrape the rust off, then it is a physical change. If you utilize a chemical that combines with the rust leaving the unoxidized penny behind, then it is a chemical change.
Blah Blah...Sorry dont know the answer:(
no because all you are doing is changing the shape and form
formation of gas, formation of a precipitate, change im color, change in odor
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.
i m pretty sure a colour change represents a Chemical change
Chemical change
physical
If you use a abrasive to scrape the rust off, then it is a physical change. If you utilize a chemical that combines with the rust leaving the unoxidized penny behind, then it is a chemical change.
Blah Blah...Sorry dont know the answer:(
No. Variables are things that change - the Statue of Liberty does not change height.
I think that its a chemical change because you cant put its back into what its was before you carved it .
The statue of liberty turned green because of chemical weathering.
It is chemical. The copper in bronze turns green when it oxidizes.
This is a physical change because wind and erosion are part of the physical category. Chemical change is where things happen involving actual chemicals . Wether the chemicals are from nature or not , Chemicals are chemicals. hope this helped ;] ~Lily
The color changed; a copper carbonate hydrate is formed.