Question

Which of the following are examples of chemical energy? Choose all correct answers.

a) A lump of coal
b) A ball rolling down a hill
c) An apple
d) A bolt of lightning

Answer 1

Chemical energy is a form of potential energy stored in the atoms, molecules, and chemical bonds of a substance. Examples of chemical energy include a lump of coal, an apple, and a bolt of lightning.

Step-by-step explanation:

Chemical energy is a form of potential energy stored in the atoms, molecules, and chemical bonds of a substance.

Examples of chemical energy include:

1. A lump of coal: Coal contains potential chemical energy that is released when it is burned.
2. An apple: The sugars and other molecules in an apple store chemical energy that is released during digestion and metabolism.
3. A bolt of lightning: Lightning is the result of a chemical reaction between air molecules that releases a large amount of energy.