According to dalton, all matter is made of atoms and atoms are indivisible and indestructible particles true and false

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.

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.

Which fact represents evidence for the big bang theory?