Question

Define physical change and chemical change ​

Answer 1

Explanation:

Physical change

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.

Chemical change

Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. ... An example of a chemical change is the reaction between sodium and water to produce sodium hydroxide and hydrogen.

Answer 2

Answer:

• When any body or object is changed by physically and also by structure is called physical change.

• When any body or any object is changed chemically and internally, then the change of that object is called chemical change.