How is energy related to the way particles behave when matter changes between different states?

The drawing represents the movement of particles in a substance. what changes of state can this substance undergo

How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?

An atom of lithium-7 has an equal number of(1) electrons and neutrons(2) electrons and protons(3) positrons and neutrons(4) positrons and protons