Chemistry - State of matter

the 3 states of matter

• gas

• liquid

• solid

when does melting occur

changing from solid to a liquid

when does freezing occur

when changing from a liquid to a solid

when does boiling occur

when changing from a liquid to a gas

condensation

when changing from a gas to a liquid

what happens to the particles when changing from solid - liquid - gas

• particles gain more kinetic energy

• particles move around more

what happens to the particles when changing from gas - liquid - solid

• particles lose kinetic energy

• move around less

• become closer together

what is diffusion?

the movement of particles from an area of high concentration to an area of low concentration

at which state can diffusion not happen

a solid state

what do particles need to be able to do for diffusion to occur

particles need to be able to move

definition of a solvent

liquid in which solute dissolves

definition of solute

substance that dissolves in a liquid to form a solution

definition of solution

mixture formed when a solute has dissolved in a solvent

definition of a saturated solution

solution in which no more solvent can be dissolved