Question

explain physical changes and chemical change , write their difference between too?​

Answer 1

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Physical changes:-

• A physical change involves a change in physical properties. Examples of physical properties include melting, transition to a gas, change of strength, change of durability, changes to crystal form, textural change, shape, size, color, volume and density.

Chemical changes:-

• The explosion of fireworks is an example of chemical change. During a chemical change, substances are changed into different substances. Another words, the composition of the substance changes.

Difference:-

• A chemical change is a permanent change. A Physical change affects only physical properties i.e. shape, size, etc. Some examples of physical change are freezing of water, melting of wax, boiling of water, etc. A few examples of chemical change are digestion of food, burning of coal, rusting, etc.

Answer 2

Question ::-

1. explain physical changes and chemical change , write their difference between too?

Required answer ::-

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Physical changes ::-

• In physical change there is only changes in physical properties of an object

• In physical change no new substance is formed.

• Physical physical change is a temporary change.

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Chemical changes ::-

• In chemical change there is new substance formed .

• Chemical change is a permanent change.

• Examples of chemical change is change in temperature

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