Write down the observation which indicate the occurance of a chemical reaction????
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4
evolution of gas
change in state
change in colour ect
change in state
change in colour ect
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heya!
here is your answer ..
Change in colour
change in temperature
evolution of gas
change in state
formation of precipitate
plse mark as brainlist n follow me
here is your answer ..
Change in colour
change in temperature
evolution of gas
change in state
formation of precipitate
plse mark as brainlist n follow me
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