Compare the Lewis structures of carbonate ion (CO32-) and borate ion (BO33-): a. Are these ions isoelectronic? b. How many resonance structures does each ion have? c. What are the formal charges of each atom in these ions?

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.