Question

Explain why irrevisible changes are usually chemical change

Answer 1

Most chemical reactions require chemical changes to make them go in reverse, rather than a physical change like raising or lowering the temperature. ... Chemical reactions are not irreversible in most cases because the products obtained are formed basically due to the rearrangement of the reactant atom

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Answer 2

Irreversible changes are usually chemical changes because in physical change only the physical properties are changed such as shape ,size etc and the nature of the molecule is not changed that's why most of the time physical changes are reversible. But in chemical changes the nature of the molecules undergo changed that's why most of the time chemical changes are reversible ,hope this answer helps you!!!:-)