How many moles of oxygen gas would be needed to react with 155 g of propane gas, C3Hg, in a combustion reaction?
C3H8 (g) + 502 (g)
+
-> 3CO2 (g) + 4H20 (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? 2 li (s) + 2 h2o (l) yields 2 lioh (aq) + h2 (g)

Ajet plane is speeding down the runway during takeoff. air resistance is not negligible. identify the forces on the jet.

Titration reveals that 11.6 ml of 3.0m sulfuric acid are required to neutralize the sodium hydroxide in 25.00ml of naoh solution. what is the molarity of the naoh solution?