Larvae and pupae normally float. They must use their muscles in order to dive down through water. What type of energy is used by the muscles?
I
A. Sound energy from the air
B. Thermal energy from the water
C. Chemical potential energy from their cells
D. Gravitational potential energy from Earth

answer:

the reaction is type of combination reaction.

explanation:

on the product side, there are 2 molecules of bonded to fe   which means one atom of fe are combined two molecules of . so, balanced chemical equation becomes :

this reaction follows the reaction type of combination reaction. a combination reaction is defined as chemical reaction in which reactants combines together to form a single product.