2.2 Substances Mixtures _ 2 (brushup)

Planning
  • Short Revision 2.1 + 2.2

  • Explanation 2.2

  • Let's work
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Slide 1: Tekstslide
Natuurkunde / ScheikundeMiddelbare schoolhavoLeerjaar 2

In deze les zitten 17 slides, met interactieve quiz en tekstslides.

time-iconLesduur is: 60 min

Onderdelen in deze les

Planning
  • Short Revision 2.1 + 2.2

  • Explanation 2.2

  • Let's work

Slide 1 - Tekstslide

what 3 types of mixtures were explained last time

Slide 2 - Open vraag

At the end of this lesson:
You will know:
  • What seperation methods are

You will be able to:
  • Explaine how seperation methods work

Slide 3 - Tekstslide

H2.2
  • Pure substances
       Consist of 1 substance, 
       1 kind of molecules

  • Mixtures
       Consist of 2 or more substance, 
       2 or more kind of molecules

Slide 4 - Tekstslide

H2.2
  • Mixtures

  • 3 Types of mixtures


Slide 5 - Tekstslide

H2.2
  • Mixtures

  • 3 Types of mixtures
  1. Solution
  2. Suspension
  3. Emulsion


Slide 6 - Tekstslide

Solution
  • Solvent
  • What is a solute/ dissolved substance?

  • Clear, sometimes colored 

Slide 7 - Tekstslide

Suspension
  • A liquid with a floating fine powder
  • The powder does not disolve!!

  • Cloudy, colored 

Slide 8 - Tekstslide

Emulsion

  • A cloudy mixture of two liquids,
  • The liquids does not disolve!!

  • Cloudy, colored 

  • Need an emulsifier to mix

Slide 9 - Tekstslide

Explanation
  • Seperating mixtures

  • Using: seperation methods

  • Based on difference in properties (of each substance)


Slide 10 - Tekstslide

Explanation
  • Seperation methods:
  1. Settle and pouring 
  2. Centrifugation (spinning) 
  3. Filtration 
  4. Evaporation 
  5. Distillation 
  6. (Extraction) 
  7. (Adsorption) 


Slide 11 - Tekstslide

Explanation
  • Seperation methods:

  • Settle and pouring 
  • Based on difference in density


Slide 12 - Tekstslide

Explanation
  • Seperation methods:

  • Centrifugation (spinning) 
  • Based on difference in density


Slide 13 - Tekstslide

Explanation
  • Seperation methods:

  • Filtration 
  • Based on difference in particle size


Slide 14 - Tekstslide

Explanation
  • Seperation methods:

  • Evaporation 
  • Based on difference in boiling point


Slide 15 - Tekstslide

Explanation
  • Seperation methods:

  • Distillation 
  • Based on difference in boiling point


Slide 16 - Tekstslide

Let's Work

- H2.2 (p. 19+20 -> Not Extraction and filtration)

- Make the following exersises: 

   2.2: 11, 12, 15,

Slide 17 - Tekstslide