CBSE Class 6 Answered
The same substance can undergo a physical change or a chemical change depending upon the conditions. Explain with an example.
Asked by Topperlearning User | 30 Jan, 2015, 02:11: PM
Expert Answer
The melting of wax is a physical change but burning of wax is a chemical change. So, the same substance wax can undergo both physical and chemical change. On melting, only change in the state of wax occurs but on burning wax, it produces carbon dioxide gas, water vapour, soot, heat and light. Hence, it is a chemical change.
Answered by | 30 Jan, 2015, 04:11: PM
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