Question

give an example where chemical reaction takes place due to the supply of heat

Answer 1

The burning of magnesium where we supply heat and chemical change takes place as we burn the ribbon of magnesium it changes into magnesium powder it is chemical change but we have to make it burn so we have to supply heat to it

Answer 2

when the energy is supply in the form of heat ,then reaction said to be thermochemical decomposition  reaction.

example of chemical reaction in supply of heat:-

CaCO3=========CaO  + CO2

NaHCO3=============CO2 +H2O + Na2CO3