What kind of energy is stored in a flashlight battery enabling it to function?

electrical energy, chemical energy, mechanical energy, or gravitational energy

? :/

Question

What kind of energy is stored in a flashlight battery enabling it to function? 

electrical energy, chemical energy, mechanical energy, or gravitational energy 

? :/

michele_laino · Answer

it is the chemical energy, since each battery is  a chemical source of electric energy

anonymous · Answer

ohh ok!

michele_laino · Answer

think about the so called Daniell cell

anonymous · Answer

what is that ?

michele_laino · Answer

which is used in electrochemistry

anonymous · Answer

ohh okay!

michele_laino · Answer

substantially a chemical cell, is a reactor which contains a solution of some acid, and two electrodes. Those electrodes are separated, inside the reactor, by a porous septum, which permits to the ion inside the cell to go from one electrode to another one. Externally, to the reactor there is a wire, and into that wire a current of electrons flow from one electrode to the other one, like this:
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