Question

5. When a candle bums, both physical and chemical changes take place.
Identify these changes. Give another example of a familiar process in
which both the chemical and physical changes take place.​

Answer 1

When a candle burns two things take place -

The melting of the candle

Release of CO2 from burnt candle.

The melting of candle here is a physical change bcs the state of candle reverses from molten form to solid form.

The release of CO2 is a chemical change

eg: Burning of wood

when wood burns moisture in it turns into water vapour which is a physical change and CO2 and other gases are released which is a physical change.

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Answer 2

Answer:

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