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What do you mean by physical and chemical cjange |
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Answer» Physical chang is the things which we can get after using also like meting of ice and buring of candle. Chemical change meand the thing we cannot ge afer using like digestion and burning of paper etc In physical change new substance does not form n in chemical change new substance Those changes that can be reversed are physical changes. Like tearing of paper. Those changes that can\'t be reversed are chemical changes. Like conversion of milk into curd. |
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