CBSE Class 7 Answered
Preparing crystals of coppersulphate from copper and sulphuric acid involves both physical and chemical changes.why? that is the one asked in my assesment?
Asked by arajeevshashank | 16 Nov, 2017, 08:13: AM
Expert Answer
Preparing crystals of copper sulphate from copper and sulphuric acid involves both physical and chemical changes.
Physical change: A physical change involves changes in the structure, shape, density etc of the substance.
Here crystals of copper sulphate are formed from copper and sulphuric acid. Crystallisation is a physical change.
Chemical change: In chemical change new substance is formed.The properties of the products formed are different from properties of reactants.
Here the reaction between copper and sulphuric acid gives copper sulphate.
Answered by Varsha | 16 Nov, 2017, 11:50: AM
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