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Is bananas turning black if you leave them in a warm cupboard for a week a chemical reaction and why?
Wiki User
∙ 9y ago
Yes, it is a chemical reaction, because the colour of the banana has changed, which shows that a chemical reaction has taken place. Also, if the banana has gone black and turned bad, you can't change it back to it's original form, which proves that it is a chemical reaction and not a physical reaction.
Remember -
A chemical reaction has definitely taken place if :
It's colour has changed
A gas is given off
There are energy changes
Or, it can't be changed back to what it used to be!
:) Hope this helps!!
Wiki User
∙ 11y ago
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