Question

What is the difference between a physical and chemical change?

Answer 1

A physical change is a change in the form or state of matter without changing its chemical composition. Examples of physical changes include melting, boiling, freezing, and condensing.

A chemical change is a change that results in the formation of one or more new substances with different properties than the original substance. Examples of chemical changes include burning, rusting, and cooking. In a chemical change, the chemical composition of the substance is altered.

Answer 2

The main difference between a physical and chemical change is that a physical change involves a change in the appearance or state of a substance, while a chemical change involves a change in the chemical composition of a substance. Physical changes are reversible, meaning that the original substance can be recovered, while chemical changes are irreversible. Examples of physical changes include melting, freezing, and boiling, while examples of chemical changes include combustion and rusting.

Answer 3

The chemical changes are 

It is not easily reversible

New substance is formed

There is a change in mass 

It involves great change even explosion

The physical changes are the opposite of the chemical change this is the difference between physical and chemical changes

Answer 4

A physical change involves altering the appearance or state of a substance without changing its chemical composition, like melting ice. In contrast, a chemical change results in a new substance with different chemical properties, like rusting iron.

Answer 5

In a physical change the appearance or form of the matter changed but the kind of matter in the substance does not. However in a chemical change   the kind of matter changed and at least one néw substance with new properties is found.