Where are the longest continuous mountain ranges on earth located?
a. in the western portion of the united states
b. in the middle east
c. along the san andreas fault
d. along the ocean floor

In a sample of oxygen gas at room temperature, the average kinetic energy of all the balls stays constant. which postulate of kinetic molecular theory best explains how this is possible? a. attractive forces between gas particles are negligible because the particles of an ideal gas are moving so quickly. b. collisions between gas particles are elastic; there is no net gain or loss of kinetic energy. c. gases consist of a large number of small particles, with a lot of space between the particles. d. gas particles are in constant, random motion, and higher kinetic energy means faster movement.

Can someone me with questions 15 to 17 plz.

What is the mass defect of a mole of nuclei with 1.8 x 10^15 j/mol binding energy?