Pls help me What is the speed of light? (Select all that apply.)
The speed of light is the speed at which your eyes process colors.
The speed of light is the speed at which light waves travel.
The speed of light is 1 mi/sec.
The speed of light is 186,000 mi/sec.

What happened to the amount of carbon dioxide in the atmosphere from 2010–2017?

Which of the following is the correct formula for copper (i) sulfate trihydrate? cuso4 · 3h2o cuso4(h2o)3 cu2so4(h2o)3 cu2so4 · 3h2o

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 .