you don't
That the lime was going to help the apple from turning brown.
Oxygen. Dip apple slices in lemon juice to keep them from turning brown.
http://www.articlesbase.com/food-and-beverage-articles/keep-apple-slices-from-turning-brown-naturally-1238490.html
After you cut them soak them in 7up or sprite for only a couple seconds
Hypothesis 1: When you disturb the skin of an apple by cutting the apple into half, the exposed area will turn brown due to exposure to air.Hypothesis 2: If you snugly wrap or cover the exposed area of an apple after cutting it (disturbing the skin), you can slow down how fast the inside turns brown. Hypothesis 3: If you remove all of the skin of an apple and let it sit in the air, the outside will turn brown but the inside will not turn brown at the same rate. Hypothesis 4: If you remove all the skin of an apple AND slice the whole apple into pieces, all sides exposed to air will turn brown; if some slices are thicker, the inside will turn brown more slowly than the exposed outside areas.
A household item that can help preserve apples in lemon juice. Using lemon juice will prevent the apple from turning brown which is caused by an enzyme.
An apple turning brown is both a chemical and a physical change. Physically it changes appearance by turning brown. Chemically it oxidizes when the air comes in contact with the enzymes and chemicals in the fruit.
Dried apples have nothing in them but apple. The liquid has been removed. Some apples might have sulfites or other color preservatives added to keep the slices from turning brown during drying. Check the ingredient statement.
A hypothesis doesn't have to be a correct statement. Just pick a chemical and say this one will or will not keep the fruit from turning brown. Then give a brief statement about why you think this way.
You don't need to soak an apple before eating. You just need to wash the apple with water beforehand. To keep apple slices from turning brown, you can soak them for 3-4 minutes in water or lemon juice.
''Yes because apples have less calcium and salt water has more protein and lemon juice has more sugar than all two. So the answer is yes''
Yes, an apple slice that has been exposed to air can turn brown after a short period of time. If you need to keep the slices from turning, you can coat them with lemon juice or even lemon lime soda.