Which statement best describes an advantage of describing a system with a mathematical model? A. It simplifies the system by describing only one variable at a time. B. It allows people to manipulate something that looks like the actual system. C. It enables people to calculate how a change in one variable will affect other variables. D. It helps people visualize the way that systems are interconnected.

atomic number of carbon is 6

electronic configuration of carbon is 1s²2s²2p²

orbital diagram of carbon is as shown here in the image.

the electrical  conductivity  of asolution  of an electrolyte is measured by determining the resistance of thesolution  between two flat or cylindrical electrodes separated by a fixed distance.

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.