CBSE Class 7 Answered
When a chemical change takes place, what changes accompany the formation of new substance?
Asked by Topperlearning User | 29 Apr, 2014, 01:25: PM
Expert Answer
In addition to new product, the following may accompany a chemical change:
(i) Heat, light or any other radiation may be given off or absorbed.
(ii) Sound may be produced.
(iii) A change in smell may take place or a new smell may be given off.
(iv) A colour change may take place.
(v) A gas may be formed.
Answered by | 29 Apr, 2014, 03:25: PM
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