Which process is a chemical change?

The diagrams to the right show the distribution and arrangement of gas particles in two different containers. according to kinetic-molecular theory, which of the following statements is true? check all that apply. if the temperatures of both containers are equal, container a has greater pressure than container b. if the volume of container a decreased, its pressure would decrease. if the pressure in both containers is equal, container a has a lower temperature than container b.

Which diagram represents the phase tha occurs after a solid melts?

Which of the following is in the lanthanide family? a) uranium b) promethium c) silver d) gold