What are four physical changes a candle undergoes when a part of it is broken off?

Flames melt the wax which is a physical change. The wax goes from solid to a liquid but it is still wax just going in different forms when it cools. When wax burns the wax combines with oxygen to form CO2, Carbon Monoxide, Carbon particles, (incomplete burning/oxidation) and water. The burning has broken the bonds in the wax and made a new compound.

Answered by kats12 | 2024-06-10

When a part of a candle is broken off, it undergoes physical changes including becoming broken pieces, changing shape, increasing surface area, and altering melting behavior. None of these changes affect the chemical identity of the wax. These changes show how a material can change appearance while remaining the same substance.
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Answered by kats12 | 2024-10-01