Difference between physical change and chemical change? 4 difference.
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Answer:
Physical change Chemical change
Only physical changes like odour, physical state, density, volume etc. changed and chemical properties remain unchanged The chemical composition and chemical properties undergo a change
No new substance is formed in a physical change. A new substance is formed in a physical change.
Very little or no energy in the form of heat, light or sound is usually absorbed or given out in a physical change A chemical change is always accompanied by absorption or evolution of energy
It is a temporary change It is a permanent change
The original form of substance can be regained by simple physical method Original substance cannot be obtained by simple physical method
It is reversible It is irreversible
physical change is moving sofa or anything
chemical change is by using chemical