How many liters of CO2 will be produced by burning 2 liters of methane?

To solve, we write down the equation of the process:

CH4 + 2O2 = CO2 + 2H2O + Q – combustion of methane, carbon monoxide (2), water, heat are released;
Proportion:
1 mol of gas at normal level – 22.4 liters;
X mol (CH4) -2 liters from here, X mol (CH4) = 1 * 2 / 22.4 = 0.09 mol.

Y (CO2) = 0.09 mol since the amount of substances is 1 mol.

3. Find the volume of the product:

V (CO2) = 0.09 * 22.4 = 2.02 L

Answer: received carbon monoxide (2) with a volume of 2.02 liters