Two compartments (A and B) are separated by a semipermeable membrane that is permeable to solute X but not water. Compartment A contains 100 mL of water and 500 mM of X. Compartment B contains 400 mL of water and 250 mM of X. If X is allowed to diffuse freely until equilibrium is reached, what will be the final concentration of X in Compartment A (in mM, don't type in the units)

Two things that biomedical has invented or innvated

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? a. the balloons both rise. the cold balloon is larger than the warm balloon. b. the balloons rise at the same rate. both balloons are the same size. c. the warm balloon expands and rises. the cold balloon shrinks and sinks. d. the cold balloon expands and rises. the warm balloon shrinks and sinks.

Over the last 90 years, scientists have added to the body of evidence supporting the big bang theory. what is the latest piece of evidence discovered in 2014?