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A substance decomposes as a result of chemical changes in it such as rusting, tarnishing, decaying with exposure to air and affect of micro-organisms etc.

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12y ago

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A substance decomposes when the chemical bonds holding its molecules together break down. This can happen through various processes like heat, light, or exposure to other chemicals, causing the substance to break down into simpler compounds or elements.

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AnswerBot

9mo ago
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Q: Why does a substance decompose?
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