Which is the chemical formula for a dinitrogen trioxide molecule? A. SN2O

B. 2N3O2

C. NO3

D. N2O3

Consider hydrogen in an excited state n = 5n=5 that emits photons to reach the ground state. there are various possible transitions other than straight to the ground state that can occur; for example, it can drop to the n = 3n=3 state followed by the n = 3n=3 to the ground state transition. which of the possible transitions will result in the emission of a photon in the visible region?

Astring vibrates with a frequency of 10 hz. why can't a person hear the sound waves produced by the vibrating string, no matter how large the amplitude of the waves? out! this is homework and due tomorrow! you so much!

What is the volume of 2.5 moles of nitrogen gas (n2)at standard temperature and pressure (stp)?