Question

Can you tell.....
which change occurs in burning of a candel??

Answer 1

Answer:

When a candle burns, both physical & chemical changes occur. On heating, candle wax melts and form liquid wax. It is a physical change. Since it again turns into solid wax on cooling.This is a reversible change. When a candle is burnt in air, the mass of the product is increased due to atmospheric oxygen which show that it is a chemical change.

Answer 2

Explanation:

When a candle burns, both physical & chemical changes occur. On heating, candle wax melts and form liquid wax. It is a physical change. Since it again turns into solid wax on cooling. Hence, both physical changes and chemical changes occur. If you want more detailed answer please reffer to this question

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