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

O oxygen

strontium Sr

F fluorine

aluminum Al

I Iodine

chlorine Cl

Ga gallium

selenium Se

P phosphorus

arsenic As

Br bromine

S sulfur

N nitrogen

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

Elements, Compounds, & Mixtures 1.P 2.C 3.P 4.C 5.P 6.C 7.P 8.P 9.P 10.C 11.He/Ho 12.E 13.E 14.He/Ho/C 15.He/Ho 16.E 17.Ho/He/C 18.E

Cont. Chlorine-Element Water-Comp. Ho Soil-He/Ho Sugar Water-Ho Oxygen-E/C CO 2 -Compound RRIC-HeAlcohol-Ho/C Pure Air-Ho Iron-Element

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!

Separation Lab  Funneling  Work with your lab partner to begin Introduction  Purpose – separate a mixture by physical means – don’t lose anything!  Research NH 4 Cl, SiO 2, & NaCl