write the activity to show change in state of matter and change in temperature during reaction
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Change in sate of matter:example is burning of candle or melting of ice.
in this activity u can note the the physical state or condition of the matter changes from solid to liquid or vice versa.
secondly to specify with change in temprature U can give example of reaction of zinc with sulphuric acid.
this is an exothermic reaction in which much heat is generated.
Zn+H2SO4=ZnSO4+H2.
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