Question

Write and balance the chemical equation for the reaction associated with ΔHof of Fe2O3(s). What is the sum of all of the coefficients in your balanced chemical equation? (Ex: the answer would be 5 for the reaction: 2 CO + O2 -> 2 CO2)

Answer 1

Answer: The sum of all of the coefficients in your balanced chemical equation is 9

Explanation:

The standard heat of formation of a compound is the change of enthalpy during the formation of 1 mole of the substance from its constituent elements, with all substances in their standard states.

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

The balanced equation for formation of $Fe_2O_3$ is:

$4Fe(s)+3O_2 (g)\rightarrow 2Fe_2O_3(s)$

The sum of all of the coefficients in your balanced chemical equation is = 4+3+2= 9

Answer 2

The sum of all of the coefficients in the balanced chemical equation of AH of Fe2O3 is 9.

HOW TO BALANCE A CHEMICAL EQUATION?

A chemical equation is said to be balanced when the number of atoms of each element on both sides of the equation are the same.

According to this question, the balanced equation for the enthalpy change of Fe2O3 is given as follows:

4Fe + 3O2 → 2Fe2O3

The sum of all the coefficients in this balanced equation is as follows: 4 + 3 + 2 = 9.

Therefore, the sum of all of the coefficients in the balanced chemical equation of AH of Fe2O3 is 9.

Learn more about coefficients at: https://brainly.com/question/1180889