because u cant change it back form its original form
Physical change
This is an example of a change in the physical states of Matter. These states-of-Matter are: Solid, Liquid, Gas and the Newest and Latest and most energetic State - Plasma. Frost is a special 'case' because it does not Condense [vapor to liquid], it Sublimes - water [in this case] vapor crystallizing [directly] to the Solid - bypassing the liquid phase.
There are many things that stop protein from crystallizing. Examples of things that stop protein from crystallizing include not being homogeneous and not being at least 97% pure.
Burning is a chemical change.
chemical
It's a chemical change
it is a chemical change
its a chemical change
It is a chemical change.
chemical change:)
it is a chemical change
No. A physical change is a change that does not change the chemical composition of a substance, while a chemical change does change the chemical composition of a substance.