Ammonia burns in oxygen to form nitrogen monoxide and water according to the following reaction. How much heat is released if 47.9g ammonia is completely reacted with oxygen? H rxn= -902 kJ 4NH3 (g) + 5O2(g) —->4NO (g) + 6H2O (g)

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electron microscopy and scanning tunneling microscopes gives us a greater understanding of atoms by being able to see the atom itself, and lets us see some atomic reactions.

explanation:

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explanation:

frequency, z, and the collision density, z, in carbon dioxide (co2), r 180 pm at 30 °c and 120 kpa