Question

Distinguish between physical and chemical change.

Answer 1

physical change takes place physically and chemical change takes place when we add chemical to any solution.eg: milk into curd and rusting of iron

Answer 2

physical change :
1. in physical change physical properties are change such as size colour etc
2. it's a reversible change
3. for eg: burning of candle
chemical change:
1. in chemical change only chemical properties of a substance get changed
2. it's a non- reversible change.
3. for eg burning of fossil fuels

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