Which of the following electromagnetic waves are listed in the correct order from longest wavelength to shortest wavelength

Draw the structure for 5-isopropyl-2-methyl-3-nonene

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 .

How many neutrons does an element have if its atomic number is 50 and its mass number is 166