Which of the following is NOT a cause of Earth's internal heat? A. friction between the twelve tectonic plates

B. heat leftover from Earth's formation

Where are each of the three particles located within the atom?

The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false

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?