Methods of Separation Agenda  Warm Up Review  Homework check  Notes on methods of separation

N nitrogen

germanium Ge

O oxygen

gallium Ga

S sulfur

tin Sn

Cl chlorine

Al Aluminum

fluorine F

P phosphorus

silicon Si

As arsenic

bromine Br

lead Pb

boron B

Se selenium

carbon C

I iodine

Why use a fire blanket?

List 3 physical properties of iron

How is a homogeneous mixture different than a heterogeneous mixture?

Classify as Element, Compound, Homogeneous or Heterogeneous Mixture  Watermelon  Muddy water  Kool-aid  silver

Substances vs. Mixtures worksheet key 1.S – E 2.S – C 3.M – He* 4.M – Ho 5.S – E 6.S – C 7.S – C 8.M – Ho* 9.M – Ho 10.M – He/Ho 11.S – E 12.M – Ho 13.M – He/Ho 14.S – E 15.M – He 16.M – Ho 17.S – C 18.M – Ho 19.M – Ho 20.M – Ho

Homo vs. Hetero Key 1.Ho 2.He 3.He 4.Ho 5.He 6.Ho 7.Ho 8.Ho 9.He 10.He 11.Ho 12.Ho 13.He 14.Ho 15.He

Methods of Separation Date:

 Distillation – separate liquids by boiling points.  One boils off quicker allowing it to be trapped and condensed.  Occurs with oil and gasoline

 Chromatography – separate particles by their ability to travel with a solvent – many types  Ink on paper – lab from crime

 Sublimation – Separate solids.  Heat mixture so that one of the substances is converted into a gas. Not many substances sublime  Dry ice

 Extraction – dissolving a substance in a solvent in which all other substances are insoluble.  You did this one in the lab!

 Filtration – Separates liquid and solid  pouring mixture into paper, the liquid passes through while paper collects the solid  Coffee, draining spaghetti

 Evaporation – heat a liquid to its boiling point so that it evaporates leaving behind the other substances.  You did this one in the lab!