No, you can take the melted chocolate goo and pour it into a mold, cool it and re-form the candy bar. No, melting a chocolate bar is not an irreversible change. Melting a chocolate bar is just changing its state of matter. If you but the melted chocolate bar in a freezer, where exothermic processes will occur, and the chocolate bar will be solid again.
chocolate is reversible when you melt it put it in the freezer but if you eat it it will not be reversible
Yes it is
no
Yes because it can be melted then cooled
no, you cannot get cheese back to cheese when melted
Yes they are .That is why magma which is melted rock material forms Igneous rocks.
Not at all. Any time chocolate candy is made, the chocolate is melted and solidified. Chocolate chips in chocolate chip cookies have melted and solidified.
Monkies
no if something is melted then it may be reversible, depending on what it is, but if you cook anything it will be an irreversible change
Yes. It's just like ice to water and back to ice. - - - - - "Reaction" implies a chemical change. Melting chocolate is a physical change. (Hardening melted chocolate can involve a whole series of physical changes but that's a different issue.)
just put it over the stove to heat it and boom there you go melted chocolate.