Question

2 & why the energy in the coal is called as chemical energy
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Answer 1

Explanation:

In case of fossil fuel such as coal, wood, the energy which was derived from the Sun is stored in chemical bonds between atoms and molecules in the form of chemical energy. When you burn coal at a power plant, the heat helps to release some of the chemical bonds which radiates energy which releases even more bonds.

Answer 2

Answer:

In case of fossil fuel such as coal, wood, the energy which was derived from the Sun is stored in chemical bonds between atoms and molecules in the form of chemical energy. When you burn coal at a power plant, the heat helps to release some of the chemical bonds which radiates energy which releases even more bonds