Question

different between physical and chemical change​

Answer 1

Answer:

Physical Change---

No new substance is formed in a physical change.

A physical change is a temporary change  

A physical change is easily reversible.

Very little energy (in the form of heat, etc.) is absorbed or given out in a physical change.

Chemical Change---

A new substance is formed in a chemical change.

A chemical change is a permanent change

A chemical change is usually irreversible.

A lot of energy (in the form of heat, light, sound, etc.) is absorbed or given out in a chemical change.

Answer 2

Answer:

• Physical Change : A change that alters some specific property of matter without any change in the composition of it's molecules, is called physical change.

• Chemical Change : A change that alters the specific properties of a substance by bringing about a change in it's molecular composition, followed by a change of state, is called chemical change.

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