when a when a candle burn both physical and chemical change take place. identify these changes. give another example of a familiar process in which both the chemical and physical changes take place.
So, the melting of wax and vapourisation of melted wax are physical changes. Chemical Changes : The wax near flame burns and gives new substances like carbon dioxide, carbon soot, water vapour, heat and light. LPG is another example of a familiar process in which both the chemical and physical changes take place.