Aand b react together in this reversible reaction. a + 3b --> c + 2d. a mixture of 10 mol of a and 10 mol of b were left to reach equilibrium. the equilibrium mixture contained 4 mol of b. what is the total amount, in moles, of substances in the equilibrium mixture?

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.