both, but more physical than chemical
phisical
A physical change is one you can see. It changes the size, shape, or color of something. A chemical change is one that changes the composition of something. Basically, when a substance is changed into a different substance.
No, changes in state of matter (such as melting, freezing, boiling) are physical changes, not chemical changes. Chemical changes involve the formation of new substances with different chemical properties.
phisical
Physical Changes
It is a physical change. There is no chemical reaction whatsoever.
phisical change
They aren't; a change of state is a physical change
Luster (lustre) is a physical property.
Physical changes are changes that affect the form of a chemical substance, such as changes in state or shape, without changing its chemical composition. Chemical changes, on the other hand, result in the formation of new substances with different chemical properties. Physical changes are usually reversible, while chemical changes are often irreversible.
phisical, unless using bleach. bleach actually changes pigment, while normal dye just covers-up the existing color.
Boiling water is a physical change because the water changes from a liquid to a gas (steam) due to the increase in temperature. The chemical composition of water (H2O) remains the same during boiling.