50 POINTS Ammonia gas decompses to form nitrogen and hydrogen gases. NH3(g) → N2(g) + 3H2(g) If the nitrogen gas is collected in a rigid 2 liter metal cylinder at 22oC at 2.00 X 103 kPa pressure, how many moles of nitrogen gas (N2) does the cylinder contain? A) 1.63 moles B) 1.35 X 10 moles C) 1.42 X 102 moles D) 1.82 X 102 moles

Both 1,2−dihydronaphthalene and 1,4−dihydronaphthalene may be selectively hydrogenated to 1,2,3,4−tetrahydronaphthalene. one of these isomers has a heat of hydrogenation of 101 kj/mol (24.1 kcal/mol), and the heat of hydrogenation of the other is 113 kj/mol (27.1 kcal/mol). match the heat of hydrogenation with the appropriate dihydronaphthalene.

In an investigation that uses the scientific method, which step immediately follows making a hypothesis? o summarizing the results o asking a question o making observations designing an experiment mark this and retum save and exit next submit

Ineed this asap part i: scientific method what is the difference between science and pseudoscience? what is the scientific method?