In an exothermic reaction where does the energy released as heat come from ?

Many chemical reactions give out energy in the form of heat, light or sound. Some reactions give out their energy over a long time. The energy comes from the bonds that hold the atoms together in the molecules

Explanation:

exothermicOf a chemical reaction that releases energy in the form of heat.

they it depends on if one believes about radioactivity, they make a geiger counter beep but maybe it was going to beep anyway electronics do wierd things all the time or it was programmed to beep near certain metals.