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give an example of physical and chemical change give an example of physical and chemical change occurring simultaneously justify your answer give an example of physical and chemical change both give an example of physical and chemical changes happening together give an example of physical and chemical change class 7 give an example each of physical change and chemical changes give me an example of physical and chemical change give an example of both physical and chemical change class 7 give an example of a physical and chemical change seen in nature give examples of physical and chemical changes in matter
