The question "what object is chemical to thermal?" is a bit ambiguous. It's not about a specific object, but rather a process where chemical energy is converted into thermal energy (heat).

Here's a breakdown:

* Chemical Energy: Energy stored in the bonds between atoms and molecules.

* Thermal Energy: Energy associated with the random motion of atoms and molecules.

Here are examples of processes that convert chemical energy into thermal energy:

* Burning: Combustion of fuels like wood, gas, or oil releases heat as chemical bonds are broken.

* Explosions: Rapid chemical reactions release a large amount of heat in a short period.

* Reactions in batteries: Chemical reactions within batteries produce heat as they convert chemical energy into electrical energy.

* Metabolism: Our bodies convert the chemical energy stored in food into heat to maintain our body temperature.

In essence, any process that involves a chemical reaction that releases heat is an example of a chemical to thermal conversion.