How does a chemical reaction differ from a physical change of state?
this is the difference between physical and chemical change
It can also be explained from their names
Chemical change is characterized by the formation of new substances, and the making and breaking of strong chemical bonds.
On the other hand, changes of state, EXCLUDE the formation of new substances, and chemical bonds are largely retained. Both chemical and physical change can be reversible, so reversibility is not a criterion to differentiate....