Question

In addition to formation of new substance,what all changes can be observed during a chemical change ?give one example of each type of change​

Answer 1

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In addition to new products, the following may accompany a chemical change: Heat, light or any other radiation (ultraviolet, for example) may be given off or absorbed. Sound may be produced. A change in smell may take place or a new smell may be given off.

Answer 2

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• In addition to new products, the following may accompany a chemical change: Heat, light or any other radiation (ultraviolet, for example) may be given off or absorbed. Sound may be produced. A change in smell may take place or a new smell may be given off.