Question

what kind of change is the browing of apple and why​

Answer 1

Apples turn brown because of a chemical reaction called "oxidation", which is caused by oxygen from the air. Oxygen is one of the most reactive chemicals known, and there are many kinds of oxidation reactions. ... The fridge does not stop chemical reactions, so bacteria will still rot the food eventually.

Answer 2

Answer:

Apples turn brown because of a chemical reaction called "oxidation", which is caused by oxygen from the air. Oxygen is one of the most reactive chemicals known, and there are many kinds of oxidation reactions. ... The fridge does not stop chemical reactions, so bacteria will still rot the food eventually.