The roughness of a surface is a physical property. It refers to the texture and irregularities of the surface at a macroscopic level, which can be observed and measured without changing the substance's chemical composition. Therefore, roughness is determined through physical means rather than chemical reactions.
Coarseness is a characteristic, not a change.
If you burn something it is a chemical change, however if you melt of boil it, it is a physical change.
lighting is a chemical change
Chemical change
Distilling is a physical change.
Chemical
physical
Coarseness is a characteristic, not a change.
Physical--- melting something doesn't change its chemical composition.
physical.<3
If you burn something it is a chemical change, however if you melt of boil it, it is a physical change.
It is a physical change from a rough to a smooth surface.
lighting is a chemical change
Chemical change
physical, when it is changed by something not at the molecular level it is physical like your question, this is physical, if it were chemical it would be something like pouring acid on it
Distilling is a physical change.
Physical.