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2 November, 08:18

The flesh of a cut apple turns brown when left out in the air. Is this a chemical change or a physical change? Why?

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Answers (2)
  1. 2 November, 08:24
    0
    Chemical Change

    Explanation:

    apples turn brown because of a chemical reaction named oxidation which is cause by oxygen of the air

    Oxygen is one of the most reactive chemicals known to exist ... There are a variety of oxidation reactions ... The fridge does not stop chemical reactions so bacteria will still rot the food eventually and out side of the fridge it would rot quicker than the fridge.
  2. 2 November, 10:38
    0
    Chemical change

    i got it right
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