Which of the following is most likely to be an observation made by an anatomist? select one: a. rna polymerase binds to a promoter, a dna sequence that becomes a gene. b. sensory receptors convert information into impulses to be sent to the cns. c. the heart's epicardium forms a protective outer covering and secretes serous fluid. d. the middle ear is an air-filled space that separates the outer and inner ear.

distance, luminosity, brightness, radius, chemical composition, and temperature

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.