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Physical and Chemical Change — CHEMISTRY STD 7 — Question

ICSE BoardEnglish MediumSTD 7CHEMISTRYPhysical and Chemical Change2 Marks
Question
Define a chemical change. Give two examples of the above changes.
✓

Answer

A permanent change in which new substances are formed whose composition and properties are completely different from those of the original
substances.
Chemical change:
(i) Burning of wood.
(ii) Breathing.

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