Question

Melting of wax is a physical change but burning of wax is a chemical change.Justify.

Answer 1

Explanation:

When it melts...it came solidify. ..but if it burns .it's cant

Answer 2

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The melting of the solid wax to form liquid wax and the evaporation of liquid wax to form wax vapour are physical changes. The burning of the wax vapour is a chemical change. The wax vapour reacts with oxygen in the air to form new substances including carbon dioxide and ash.