4. Ammonia reacts with oxygen to form nitrogen dioxide and steam 4 NH3 (g) + 7 O2(g) → 4 O-N=O (9) + 6H20 (9)
Calculate the delta H, using the Bond dissociation energies.

Identify a specific example for each type of technology

What is the molar mass of a gas that has density of 2.054 g/l

16. why must the number of electrons lost equal the number of electrons gained in every redox reaction? use 3 – 4 sentences in your own words to address this question. 18. what type of radiation is emitted when chromium-51 decays into manganese-51? show the nuclear equation that leads you to this answer. 19. a radioactive nucleus alpha decays to yield a sodium-24 nucleus in 14.8 hours. what was the identity of the original nucleus? show the nuclear equation that leads you to this answer.