| A | B |
|---|
| arrangement of particles in a gas | random and far apart |
| arrangement of particles in a solid | regular and close together |
| arrangement of particles in a liquid | random and close together |
| movement of particles in a gas | fast in all directions |
| movement of particles in a solid | vibrate around fixed positions |
| movement of particles in a liquid | move around each other |
| used to draw the line in paper chromatography | pencil |
| use of paper chromatography | forensic science |
| the Rf value is not | distance moved by the solvent / distance moved by the solute |
| the Rf value is | the distance moved by the solute / distance moved by the solvent |
| the Rf value will always be | <1 |
| the change of a solid into a gas | sublimation |
| the change of a gas into a solid | sublimation |
| The change of a solid into a liquid | melting |
| the change of a liquid into a solid | freezing |
| potable | drinkable |
| separates liquids | distillation |
| chemical added to water to make it safer | chlorine |
| in distillation, which liquid will 'come off first?' | the one with the lowest boiling point |
| distilled water contains | no impurities / minerals |
