Question

why cannot a chemical change be normally reversed?

Answer 1

It 's like when u put ice in water , it melts , but u can re - freeze it to form back the ice that melted .... it 's like getting the object back . u can 't do this to a chemical change ... can u make a baked cake come back to cake mix , liek u started ? no u can 't . so u can 't get chemical change back to the original object ...

 

Physical changes are generally easy to reverse because NO ENERGY is produced by the substance. 
A Chemical change cannot be reversed because ENERGY is produced by the substance forming a new substance

in other words we can say that a Chemical change cannot be reversed bcs in chemical reaction a new substance is formed by different methods like heating,.. 

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