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...
the ability to burn is actually a chemical property. they way something looks or feels or smells like would be a physical property.
A chemical change
No, it is a chemical property.
No, it is a chemical property.
chemical
Burning wood is an example of a chemical change because as it's burning it turns into ashes.
Disintegration can be a chemical change, but it depends on what kind it is. For example, sharpening a knife is a physical change, but burning a piece of wood is a chemical change.
Yes, chopping is a physical change: the chemical composition of the molecules inside the wood remains the same. Burning causes the molecules in the wood to react with the air (mostly with the oxygen in the air), and the result is different compounds than before.
Lighting A Match
a chemical change involves the formation of a new compound, whereas a physical change just changes from one form/state to another. An example is boiling water changes it from a liquid to a gas but it's still water(H2O) so thats a physical change. However somthing like metal rusting involves the addition of oxygen so iron rusting would go from Fe to FeO2 which is a new substance, hence a chemical change. Carving wood (though not an element as in this example) causes a physical change but not a chemical change.
Physical Change: A change in which the atoms or molecules in a substance stay the same. Example: Ripping a piece of paper in half Chemical Change: A change that affects the type of molecules or atoms in a substance. Example: Burning wood The primary difference is that in a physical change, the composition of the substance remains the same, but in a chemical change, the composition of the substance changes.
Combustion (burning) is a chemical change.
The chemical change is the burning wood because the products, carbon dioxide, water, ash, and soot, have different physical and chemical properties. The other changes are physical changes because the physical and chemical properties of the substances did not change.
Chemical change
Dissolving salt in water and making ice cubes
chemical change.
No, it is a physical change. If you think about cutting the wood, the pieces will be smaller than the log, but they will have all of the same properties as they did when they were put together. An example of a chemical change is burning the wood. The act of burning it would be a chemical change since it is converting the wood into carbon and water vapor.
Disintegration can be a chemical change, but it depends on what kind it is. For example, sharpening a knife is a physical change, but burning a piece of wood is a chemical change.
Unfortunately, it is not a physical/reversible change, as combustion causes chemicals to change their bonding. A simpler example than wood would be glucose (the same reaction as in respiration): C6H12O6 + 6O2 --> 6CO2 + 6H2O This reaction is not reversible.
Burning wood. When the wood is burned, it becomes black.
Burning wood is a chemical change - although, like most chemical changes it is accompanied by a physical change. Usually we reserve the term physical changes for things like erosion, melting, or evaporation where no change in composition occurs.
Yes, chopping is a physical change: the chemical composition of the molecules inside the wood remains the same. Burning causes the molecules in the wood to react with the air (mostly with the oxygen in the air), and the result is different compounds than before.
A physical change is a change that can be undone. A chemical change cannot be undone. An example of this would be dissolving salt in water. This is a physical change because if you let the water in the container evaporate the salt will be left behind. A chemical change would be like burning a piece of wood since you cannot undo the change taking place to the wood.