Agas mixture contains 1.61 moles of hydrogen and 2.31 moles of oxygen. what is the mole fraction of oxygen?

a) 0.41
b) 0.59
c) 2.31
d) 3.92

Which of the following is true for the actual yield of a reaction? it is always calculated as a ratio. it is the yield from the excess reactant. it is the yield from the limiting reactant. it is always less than the theoretical yield.

|using the periodic tablewarm-upuse the periodic table in the tools bar to answer the following questions.what elemental classification does oxygen belongto? done

How do you know when a chemical reaction has occurred