What's the easiest way to find balance in a chemical equation? a. calculus b. multiply the number of molecules by two, then divide by the number of atoms c. trial and error

The answer is C. Trial and Error because I just took the test and got it right

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 :

pie chart because it is in percents ( % )