Charlie is balancing an equation. she has identified the atoms and counted the number of each in the reactants and products. what would charlie adjust to make the number of atoms in the reactants the same as the number of atoms in the products? a. coefficients b. subscripts c. superscripts d. parentheses

A. coefficients

Explanation:

Balancing the chemical reaction -

As , we know , atoms can not be created and destroyed , hence their is only the transfer of atoms , which take place in a chemical reaction .

Hence , it is important to balance a chemical reaction .

for any reaction , the atoms are balanced by using certain whole number that are placed as a coefficient .

As, is the numbers are placed as superscripts or subscripts, it will alter the  chemical structure of the compound .

Hence , the correct answer is A. coefficients .

answer: the value of enthalpy change will be -152.80 kj.

solution:

pressure = 1atm , temperature = = 298 k

given that pressure and temperature are same in both gases , the number of moles of both gases can be determined by the ideal gas equation.

according to reaction 3 moles no are reacting with 1 mol of ,then 0.49 mol of no will react with moles of ozone that is 0.16 moles of ozone. since, no is limiting reagent and is an excessive reagent.

enthalpy change for the reaction between the given volumes of the gases is :