Below is a diagram of carbon cycling through the ecosystem. Explain what carbon cycling means and the process it goes through using examples from the image. Be sure
to indicate the role of photosynthesis and cellular respiration in the cycling of carbon
within the biosphere.

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 .