What is the mole fraction of h2s in the gas mixture of gases made up of 7.0 g of h2s, 10.0 g of ch4 and 12.0 g of o2

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)

How many moles of oxygen react with 12 moles of aluminum

Which factor is likely to impact the possible number of compounds? presence of unlimited number of elements in the periodic table the inability of atoms to align perfectly with other atoms the ability of all elements to react with every other element all elements being equally reactive