Which statement correctly describes a sample of gas confined in a sealed container? (1) it always has a definite volume, and it takes the shape of the container. (2) it takes the shape and the volume of any container in which it is confined. (3) it has a crystalline structure. (4) it consists of particles arranged in a regular geometric pattern.

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.

How would you reduce the volume of gas

One does not belong why? ice, gold ,wood ,diamond and table salt