| A | B |
| Particles move closer together when they have less kinetic energy (heat) | contraction |
| a way to separate the solute from the solvent in a solution | evaporation |
| subsstance made of more than one kind of atom | compound |
| a substance that will dissolve in a solvent | soluble |
| occurs when particles move farther aparat because they have a greater kinetic energy(heat) | expansion |
| subtance made from only one kind of atom | element |
| always forms new substances from reactants | chemical reaction |
| the way the particles transfer energy from particle to particle | collision |
| salt, which is soluble and will dissolve | sodium chloride |
| when particles of different kinetic energy levels collide and come to the same average kinetic energy in the middle | equilibrium |
| chalk, which is insoluble and will not dissolve | calcium carbonate |
| breaking apart of particles due to kinetic energy and attraction | dissolving |
| a phase change which requires heat | melting |
| a substance that will NOT dissolve in a solvent | insoluble |
| always from ed in a chemical reaction | new substance |
| a way to separate a liquid from an undissolved, insoluble solid when they are mixed | filtration |
| putting pressure on a gas to force its particles closer together | compression |
| causes substances to break apart into particles and dissolve | attraction |
| sign that a substance is insoluble when mixed in water | cloudy |