In an experiment between 26.4 grams of Mg and O,, Mgo is produced. The percent yield was 90%. Determine the actual yield of magnesium oxide.

Which electron configuration represents the electrons in an atom of sodium in the ground state at stp

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Nitric acid can be formed in two steps from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming natural gas. in the first step, nitrogen and hydrogen react to form ammonia: (g) (g) (g) in the second step, ammonia and oxygen react to form nitric acid and water: (g) (g) (g) (g) calculate the net change in enthalpy for the formation of one mole of nitric acid from nitrogen, hydrogen and oxygen from these reactions. round your answer to the nearest .