WebScience. Chemistry. Chemistry questions and answers. Which ones of these changes are chemical changes? - candle wax is melted - a candle is burned - Two clear colorless salt solutions are mixed and a bright orange precipitate forms - A silver teapot turns black - Sugar crystals are ground to a fine powder. WebSep 1, 2024 · When candle burns, wax in candle converts from solid into liquid. This is a physical change (as it is a change in state of matter and can be reversed) However, wax near the flame burns and convert into carbon dioxide. This carbon can’t be again converted into wax , so this is a chemical change. Is a candle melting a chemical change? …
Is melting candle wax a physical or chemical change and why?
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Simple chemical reactions: how do candles work? 11-14 years
WebExpert Answer 100% (15 ratings) Melting of candle wax is change of its physical state from solid to liquid. It is temporary so it is not chemical change. When a candle is burnt carbon is oxidi … View the full answer Transcribed image text: cion 7 of 58 > Which of the changes are chemical changes? Candle wax is melted. A candle is burned. WebIs melting of wax a physical or a chemical change? 1) Photosynthesis and burning of coal 2) Dissolving sugar in water and melting of wax WebWhich of the changes are chemical changes? Candle wax is melted. a) A candle is burned. b) A silver teapot turns black. c)Two clear colorless salt solutions are mixed and a bright orange precipitate forms. D)Sugar crystals are ground to a fine powder. B,C,D grand chaos mhr