Chapter 7.2 – Chemical Equations -the balanced equation never changes no matter how much Al or O 2 we have -if I have 8 moles of Al, I need 6 moles of O 2 to react with it to give a mole ratio of 8:6, which is the same as 4:3 -it works for volumes of gases too 2H 2 O(l) → 2H 2 (g) + O 2 (g) -mole ratio of 2:2:1 -for every 2L of H 2 we made, 1L of O 2 is also made
{}