no
Cutting a piece of copper in half is a physical change because it only alters the physical appearance of the copper without changing its chemical composition.
Physical change
Physical change
It is a physical change because only its shape changed, not its chemical composition.
Physical change
chemical change
Burning is a chemical change.
Chemical.
When you burn wood a chemical change occurs.
You cannot. You need the mass of the piece of copper.
no it is not a physical change because folding a piece of paper does not chemicaly change it.
Cheimical change