When hydrogen gas reacts with oxygen gas, water vapour is formed according to the reaction 2H2 + O2 2H2O. If 3.00 mol of hydrogen gas react with 3.00 mol
of oxygen gas, which reactant will be the reactant in excess?

What is the main reason why some developing countries fear the increase the free trade policies around the world?

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?

To prevent the presence of air, noble gases are placed over highly reactive chemicals to act as inert "blanketing" gases. a chemical engineer places a mixture of noble gases consisting of 4.37 g of he, 13.36 g of ne, and 36.65 g of kr in a piston-cylinder assembly at stp. calculate the partial pressure in torr of kr.