Chemistry, 13.01.2020 19:31 brooke0713

Freshly cut surfaces of fruits and vegetables discolor when exposed to oxygen in the air. cut three slices of a fruit (apple) or vegetable (potato). leave one unwrapped on a plate. wrap one in plastic wrap. dip the other in lemon juice.

1. what changes took place in each sample after 1-2 hours?
2. define oxidation. why did wrapping or dipping in lemon juice affect the oxidation rate?
3. define reduction. what is a redox reaction?
4. explain how antioxidants such as vitamin e, citric acid, and bht are used in the foods we eat to preserve them. what are the benefits?

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