Physical or chemical change ?

Question

burning a piece of paper to form carbon dioxide and water is this chemical or physical change ??

Answer 1

Since you are changing a substance into another substance with completely different properties it is a chemical change.

Answer 2

It is a chemical change accompanied by a physical one. However, the driver here is the chemical change - oxidation of cellulosic materials to CO2 and H2O

Answer 3

physical because it still has the same chemical properties just a different physical arrangement.  

Answer 4

its a chemical change. a new substance is formed.

a physical change for example is ice melting. Ice is a solid piece of frozen water. When it melts it is now liquid water, but it is still water!

Answer 5

Chemical change because once the paper is burnt into ashes, it can't become paper again. In a physical change, the initial and end result have the same molecular structure -- for example, water, ice, and steam are all different forms of H2O, so melting and freezing are physical changes.

Answer 6

Chemical because you cannot get the original composition of the paper after burning it.

Answer 7

physical change means that there is no change on a molecular scale even after experiments are done. This entails weighing, measuring density, height, width, etc.

chemical change means that there is change on a molecular scale and the composition is different from that of the original. This entails combustion, reactions, rusting, etc.

Therefore this is a chemical change.

Answer 8

It's a Combustion Reaction ...A Chemical change with new substances formed.