a lump of sodium carbonate being crushed is a physical change
Asked by arajeevshashank | 12th Nov, 2017, 08:25: PM
A physical change involves changes in the structure, shape, density etc of the substance.
Crushing sodium carbonate involves breaking it down into a small particle which is definitely physical change.
Answered by Gajendra | 6th Dec, 2017, 03:59: PM
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