Incomplete lewis structures for the nitrous acid molecule, hno2, and the nitrite ion, no2-, are shown here. (a) complete each lewis structure by adding electron pairs as needed. (b) is the formal charge on n the same or different in these two species? (c) would either hno2 or no2- be expected to exhibit resonance?

How does a sample of helium at 15 degree celsius compare to a sample of helium at 215 k? a) the helium at 15 degrees celsius has a higher average kinetic energy that the sample at 215 k. b) the helium at 15 degrees celsius has lower nuclear energy that the sample at 215 k. c) the helium at 15 degrees celsius has slower- moving atoms that the sample at 215 k. d) the helium at 15 degrees celsius has smaller atoms than the sample at 215 k.