Which of these statements correctly explains why batteries run out of energy?
A) The battery solutions boil off.
B) The battery solutions solidify.
C) The battery reactants are used up.
D) The external circuit becomes corroded.
E) The battery salt bridge reacts with the reactants.

Question

Quizplus · Accepted Answer

Batteries run out of energy when the reactants in the battery are used up and are no longer available to produce a current. This can happen when the chemicals inside the battery are no longer able to participate in the electrochemical reaction that produces the electric current.

Which of These Statements Correctly Explains Why Batteries Run Out