Grapes hanging on the plant do not ferment but after being plucked from the plant can be
fermented. What conditions do these grapes ferment? Is it a chemical or a physical change?
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Grapes hanging from the plant do not ferment because they are still alive and their immune system is still working. When they are plucked from the plant, their immune system stops working and hence, they ferment. Under anaerobic condition microorganisms like yeast ferments grapes and wine is formed. This is a chemical change because a new substance is formed(wine) and it is irreversible.
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Answer:
it can be related to both physical and chemical change .
Explanation:
grapes hanging on plant get sufficient supply of water and food where as when plugged do not get the supply.the physical temperature also increases leading to shrinking of grapes
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