Hw many liters of methane gas ch4 need to be combusted to

Question

1. If 34.2 grams of lithium react with excess water, how many liters of hydrogen gas can be produced at 299 Kelvin and 1.21 atmospheres? Show all of the work used to solve this problem.

2 Li _(s) + 2 H₂O _(l) ______ 2 LiOH _(aq) + H_{2 (g)}

_{2. How many liters of methane gas (CH4) need to be combusted to produce 8.5 liters of water vapor, if all measurements are taken at the same temperature and pressure? Show all of the work used to solve this problem.} 

_{CH4 (g) + 2 O2 (g)  _______CO2 (g) + 2 H2O (g)}