some chemical changes can be reversed but they are hard to reverse usually
Physical changes are reversible changes, such as change of state (boiling, melting etc), chemical changes are when something undergoes a reaction changing it's chemical makeup.
The changes produced by electrolysis are chemical.
what involves both chemical and physical change on earths surface
Chemical Changes
food
There are no physical changes. there are only chemical changes.
Do Oreos undertake any chemical changes? Yes. How can Oreo be a chemical changes? Cooking involve chemical reactions, modifications of chemical molecules.
some chemical changes can be reversed but they are hard to reverse usually
water
chemical changes
Cooking food can cause chemical Changes
Not all chemical changes are accompanied by a visible physical change. Most chemical changes however will be accompanied by a physical change.
Iron is a chemical element, not a change.
Physical changes are reversible changes, such as change of state (boiling, melting etc), chemical changes are when something undergoes a reaction changing it's chemical makeup.
No, chemical changes can only be reversed by chemical means, not by physical means.
The changes produced by electrolysis are chemical.