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physical, you are only changing its appearance! :P
paper shredding
physical
The most important chemical property of paper is the acidity.
because it only changes its appearance
physical, you are only changing its appearance! :P
physical, you are only changing its appearance! :P
paper shredding
physical
Shredding paper is a physical change because you can put all the pieces of paper back together again, i.e. it is still paper. The chemical nature has not changed, only the APPEARANCE has changed.
Shredding paper is a physical change because you can put all the pieces of paper back together again, i.e. it is still paper. The chemical nature has not changed, only the APPEARANCE has changed.
it changed from paper to paper.
The most important chemical property of paper is the acidity.
Shredding wood is only a physical change because the chemical composition is still the same. Even though the force of friction is involved the wood doesn't create and ash or smoking embers which is the chemical change of wood. Although some of the chemicals used to prevent un wanted damage to wood during manufactured shredding would add a chemical composition change to the wood unknowingly
I think you mean "Is burning a paper a physical change?" Burning a paper is not a physical change. It is a chemical change. Because you can't turn the ashes of the paper into a normal paper again. Examples of physical change: Cutting a paper, sharpening a pencil, writing on a paper... Examples of chemical change: Rotten egg, Rusted steel, molded bread...
because it only changes its appearance
because it only changes its appearance