Answer:
Step-by-step explanation:
Rust used to be a very common reaction. Iron was used in autos and they formed oxides of iron or rust as the auto or truck aged. You can still see this in older vehicles, especially those used in the country.
To make wine from grapes, the grapes need to ferment which is a process where the grape just changes to alcohol or sometimes vinegar, depending on how the grapes ferment. You can certainly tell the difference between grape juice, wine an vinegar when you taste them. A chemical reaction has taken place.