What changes do you observe during a chemical reaction?
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Answered by
17
Answer:
during a chemical reaction physical changes are observed.
Explanation:
such as emission or absorption of heat ,emission of light ,formation of precipitate,the evolution of gas and colour change occurs.
Answered by
12
Answer:
(i) The original substances lose their characteristic properties. Hence these may be products with different Physical states, colours and different compositions.
(ii) Chemical changes may be Exothermic or Endothermic Reactions.
(iii) They may form an insoluble substance known as Precipitate.
(iv) There may be Gas liberation in a Chemical change.
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