Question

multiple-choice question
what are the signs that a rotting fruit is going through a chemical change?
change in color as mold grows

the fruit drying out

a noticeable moldy smell

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Explanation:

• A chemical change involves the formation of new substances. When mold grows on a fruit, new substances (mold and its by - products) are formed, and a color change occurs due to this new substance formation.
• The fruit drying out is a physical change (loss of water, no new substance formed).
• A noticeable moldy smell is due to the release of new gaseous substances (like volatile organic compounds from the mold or decaying fruit), which is a sign of a chemical change as new substances are produced.

Answer:

A. change in color as mold grows
C. a noticeable moldy smell