In a chemical reaction , the reactants are written on the left hand side followed by a rightarrow and then products are given on the right side of the arrow.
In the given chemical equation :
Reactants are iron (Fe) and oxygen and product is iron oxide .
Energy that comes from the heat of the Earth's core is known as geothermal energy. Solar energy comes from the Sun, hydro energy from water, and wave energy from wind and waves.
