Cards (26)

  • physical change
    change of state which is reversible
  • melting point
    temperature which a substance melts
  • boiling point
    temperature which a substance boils
  • sublimation (important)
    when a solid changes into a gas without becoming a liquid
  • deposition
    when a gas changes into a solid without becoming a liquid
  • pure substance
    substance made of one type of particle
  • mixture
    physically combining 2 or more elements that can easily separate
  • insoluble
    substance that doesn't dissolve
  • soluble
    substance that does dissolve
  • solute
    name for the solid that dissolves
  • solution
    mixture of the solute and solvent
  • solvent
    liquid that dissolves the solute
  • filtrate
    solution left after filtration
  • saturated solution
    solution that won't dissolve any more solute particles
  • residue
    solid left in the filter paper after filtration
  • paper chromatography
    method used to separate coloured substances
  • mobile phase
    solvent that absorbs the paper in chromatography
  • stationary phase
    the paper in chromatography
  • chromatogram
    the results from chromatography
  • Rf value (important)
    solubility measurement
    distance spot moves/distance solvent moves
  • distillation
    separating a mixture using boiling points
  • desalination
    removal of salt from sea water using evaporation
  • aquifer
    underground rocks containing groundwater
  • sedimentation
    small particles settling down
  • chlorination
    adding chlorine to kill bacteria
  • compound
    chemically combining 2 or more elements