Based on your observations from the Can Crush Lab, why would a helium balloon that rises into the atmosphere eventually burst? Atmospheric pressure outside the balloon increases as the balloon rises.
Atmospheric pressure outside the balloon decreases as the balloon rises.
Helium molecules inside the balloon decrease as the balloon rises.
Helium molecules inside the balloon increase as the balloon rises.

What happens when an acid dissolves?

Select all that apply. using a value of ksp = 1.8 x 10-2 for the reaction pbcl2 (s) pb+2(aq) + 2cl -(aq). the concentration of the products yield a ksp of 2.1 x 10-2:

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.