Question

Define physical and chemical change​

Answer 1

Answer:

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PHYSICAL CHANGE:-A change brought about in the Physical properties of a substance.

CHEMICAL CHANGE:-A change that produces entirely new substance with different chemical properties.

Explanation:

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Answer 2

Answer:

• Physical change - It 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 - A usually irreversible chemical reaction involving the rearrangement of the atoms of one or more substances and a change in their chemical properties or composition, resulting in the formation of at least one new substance is valled chemical change The formation of rust on iron is a chemical change.