burning of tree or wood is an irreversible chemical change
When something is being burned and turned into ashes, it would be a chemical change.
well when you burn somthing then it is a chemical change but the hot dog isn't a new substance and a physical change is when you break or cut somthing so i think it should be chemical because it is being burned
yes
chemical change
no, its physical change :)
The conversion of gasoline to carbon dioxide when it is burned is a chemical change, as it involves the breaking and forming of chemical bonds. This process releases energy in the form of heat and light.
A metal Surface being ground is a physical change, not a chemical change.
A wet handkerchief is a physical change. The water has only physically changed the state of the handkerchief by being absorbed, but the handkerchief itself has not undergone a chemical transformation.
physical. the water being added simply soaks through the coffee, so there's no chemical change.
Cutting anything is a physical change.
Physical Change
Signs of chemical change are when a substance changes into a new substance. Like Paper being burned turns into gray powder. That is a chemical change.