Description
About Physical and Chemical Change.
About Physical and Chemical Change.
Question:
When we burn a piece of paper, why is it called a chemical change and not a physical change?
Answer:
When paper burns, it turns into ash, smoke, and gases. A new substance is formed, and this change cannot be reversed. That’s why burning paper is a chemical change. In a physical change, no new substance is formed and the change is usually reversible.
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