yup
yup
NO
no...there is no way to reverse what you have done to that egg.
Frying an egg is a chemical change in which the protein in the egg white becomes denatured, which causes it to become white and solid. This condition is not reversible by physical means.
No because you can't get the vinegar back to it's original state because some of the bacteria has gone inside the milk
Nope... The vinegar dissolves the calcium in the egg-shell - leaving behind the inner membrane surrounding the albumen and yolk. It is an irreversible reaction.
Reversible changes mean that i.e. if you make a chocolate sweet/lolly pop etc.. you can melt it back and make another one. Irreversible changes mean that i.e. if you crack an egg and it burns, you can not turn back into a raw egg in an unbroken shell again.
Yes, a raw egg can go through physical changes such as a change in state from liquid to solid when heated to make a boiled egg. This is a reversible change that does not alter the chemical composition of the egg.
No, once an egg is cooked, it cannot be reversed or turned liquid again. The proteins in the egg react to heat by solidifying; this is an "irreversible colloid." By contrast, gelatin that becomes solid when chilled then melts when warmed is a "reversible colloid."
Yes, this change is reversible.
An example of a reversible physical change is tying shoelaces. This action can easily be undone by untying the laces, restoring the shoelaces to their original state. In contrast, cracking an egg, cutting hair, and filing nails are irreversible changes, as they permanently alter the original materials.
No, it is not. Example is when you biol the egg. Once boiled it cant be "unboiled". Classic example of permanently denaturated protein.