Question

define of physical change​

Answer 1

Answer:

Physical changes are changes affecting the form of a chemical substance, but not its chemical composition. Physical changes are used to separate mixtures into their component compounds, but can not usually be used to separate compounds into chemical elements or simpler compounds.A physical change is a change to the physical—as opposed to chemical—properties of a substance. They are usually reversible. The physical properties of a substance include such characteristics as shape (volume and size), color, texture, flexibility, density, and mass.

Answer 2

Answer:

a change in which a substance retains its Identity and changes in form or state without in composition it is temporary and easily reversible.

Example ;

• melting of ice.
• boiling of water.