An ionic bond would most likely form between atoms of which of these pairs? a. oxygen and oxygen b. magnesium and oxygen c. magnesium and magnesium user: what is an ionic bond? a. the attraction positive ions have for free electrons b. the force that holds the valence electrons to the atom c. the attraction and bonding of ions with equal opposite charges d. the bonding of ions to the same element atoms of neutral charge

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 .