Hugh has a large block of clay. He divides the clay in half, gives one half to his friend, and keeps the other half. What happened to the mass, volume, and density of the clay block that Hugh has after he cut it in half?

Kp is the equilibrium constant for dissociation of the propionic acid dimer. what is the sign of the slope for a plot of the natural logarithm of kp vs. inverse temperature for this reaction?

Which of these statements best explains why space exploration should be encouraged? it prepares humans to live without oxygen. it dispel myths about objects in space. it prevents comets and asteroids from striking earth. it creates technology to absorb harmful radiations in space.

Concentrations expressed as a percent by mass are useful when the solute is a a. liquid b. gas c. solid