Will give brianlest :) The majority of elements found in the periodic table can be classified as
A) gases.
B) metals.
C) nonmetals.
D) nonreactive.

What is the atomic number of an atom that has 6 protons

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 .

Most metamorphosis processes take place