what do you observe when fireworks explode?Is anything new formed? what types of change is it ?
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19
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we observed smoke dust and harmful chemical coming out yes the new thing is smoke and dust particles . it is a chemical change
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A chemical change occurs whenever matter changes into an entirely different substance with different chemical properties. A chemical change is also called a chemical reaction. Many complex chemical changes occur to produce the explosions of fireworks. An example of a simpler chemical change is the burning of methane.
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