why a physical change cannot be represented by an equation
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: An equation can be used to describe a physical reaction, which ... Amounts of substances represented by chemical formulas have been ... If the amount of CaO obtained is not 5.6 g, one can conclude that the sample may not ...
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Answer. Answer: its uneccesary to write an equation for a phusical change cause physcial change doesnt involve any kind of cjemical reacttion and hence properties of new substance dont chage. therfore its unnecessary
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