Consider the following reaction:
CH4(g) + 2O2(g)
CO2(g) + 2H2O(l)
What is the final volume if 10 L of methane (CH4) reacts completely with 20 L of oxygen?
So for this question, I got 30 liters, but the question said it was 10 liters. Why is liquid not counted? When is liquid counted? How about solid? Does this only apply to volume?