Question

give a big information about chemical change and Physical change

Answer 1

Here's is your answer mate

Changes in the Physical Properties of a Substance are known as Physical Changes. Physical Properties of a Substance include colour, size, shape, state, temperature, odour, appearance, texture and many more. In addition, Physical Changes do not lead to the formation of new substances. Physical Changes may or may not be reversible.

Examples of Physical Change

Breaking/Crushing of any Object

Expansion of Metal on Heating

Dissolving Sugar or Salt (Solute) in Water (Solvent) (as a result, a solution is formed)

Solidification of Molten Metal on Cooling

Shredding Paper

Chemical Changes

One or more substances, at times, react with one another or substances which are readily available in the environment. This consequently leads to the formation of a new substance(s). The formation of the new substance can also be accompanied by one or more of the following:

Emission of Heat (Exothermic Reaction) as a result of a Chemical Changes

Absorption of Heat (Endothermic Reaction) as a result of a Chemical Changes

Emission Light as a result of a Chemical Changes

Production of Sound as a result of a Chemical Changes

Change or emission of Odour as a result of a Chemical Changes

Emission of Gas as a result of a Chemical Changes

and so on.

Examples of Chemical Change

Rusting of Iron (Read)

Souring of Milk

Ripening of Fruits

Digestion of Food

Bursting of Crackers

Learn more about the Chemistry of Rusting of Iron here.

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Answer 2

main difference is that
IN PHYSICAL CHANGE THE PROPERTY OF SUBSTANCE WILL NOT CHANGE
BUT .IN CHEMICAL CHANGE PROPERTIES WILL CHAGE