When the battery is connected to an external load such as a vehicle starter, the acid reacts with the battery's plates and the chemical energy is then converted into electrical energy.
(the battery; is connected; ) (the acid; reacts; with the battery's plates; T:When the battery is connected to an external load such as a vehicle starter) (the chemical energy; is converted; into electrical energy; T:then)
the battery the acid the chemical energy
is connected reacts is converted
with the battery's plates T:When the battery is connected to an external load such as a vehicle starter
into electrical energy T:then