The metal iridium (Ir, MM = 192.2 g/mol) crystalizes with a face centered cubic unit cell with an edge length of 383 pm. How many atoms are in the unit cell?

Abaker touches a pie right after taking it out of the oven. which statement best explains why the pie feels hot?

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.

What is dhmo? hint: you find it everywhere something is wet..