A physical can be changed back to it's original form. For example, if you freeze water, it turns into ice. However, if that ice melts, it turns back into it's original form: water.
Boiling is a physical phenomenon, a change of phase.
Yes, it is a physical change. For if it was a chemical change, it would not be able to change back; but when you are just changing the state of the item/substance it can be changed back.
Yes, it is a physical change. For if it was a chemical change, it would not be able to change back; but when you are just changing the state of the item/substance it can be changed back.
it s a physical change.
it is a physical change most of the times because you can get i back into its original form. for ice, or plastic... its physical. but for styrofoam, its a chemical change because you cant get it back.
Yes. Chemical changes are irreversible, but physical changes can easily be changed back
Is a physical change as the alcohol is changing states
Yes because it cannot change back.
this is a chemical change because you can't reyurn it back to salt
a physical because it becomes water again a chemical means it can not change back
when you separate a substance from a mixture, it's a physical change... Technically, you can get it back in the mixture.
physical because a chemical change means it can never form back