PLEASE HELP MEEE THIS NEEDS TO BE DONE IN HALF AN HOUR :(

Which statement is correct?
A. elements are made of 2 or more different atoms
B. elements are made of atoms that are all identical (same)
C. compounds are made of atoms that are all identical (same)
D. compounds combine to form elements

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 :

listen, you cant how young you were.

"you didn't chose the stud life. the stud life chose you."

answermeridional ;