Từ Mg MgO và dung dịch axit sunfuric loãng hãy viết các phương trình hóa học của phản ứng điều chế magie sunfat

Calculate the number of molecules present in 0.750 mol of mgo.

Displacement is the slope of a velocity vs. time graph a. true b. false

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 .