Heat can be involved in a chemical reaction that is endothermic(absorbs heat) or that is exothermic(releases heat)
Heat usually accelerates any chemical changes
The valence electrons are the part that takes place in a chemical reaction.
Chemical and physical changes are part of methods applied in science.
The electrons
no
Only the valence electrons
Many engines do this conversion. For example, the engines commonly found in cars convert the chemical energy first to heat (by burning it), then convert part of this heat into movement (kinetic energy).
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Fu*king donkeys
Proton and Neutron do not take part in chemical reaction. Only electron takes part in the reaction.
Convection, where the heat warms the liquid and this warmer part changes places with the colder part. Also conduction, where the heat moves from one part of the liquid to another.
i believe it is the nucleus.