Yr 9 Chemistry half term 1

  • Created by: GCSE2020
  • Created on: 03-11-18 14:43
What is an element?
One type of atom. They are all found on the periodic table.
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What is a compound?
Two or more types of atom which are CHEMICALLY BONDED.
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What is a mixture?
A mix of elements and/or compounds which are NOT CHEMICALLY BONDED
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What are the 4 main techniques for seperating mixtures?
Filteration, Evaporation, Chromatography and Distilation
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What is distillation?
The process that is used to seperate liquids that have different boiling points.
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What is Chromatiography ideal for and why?
It is ideal for separating dyes in inks because the different dyes will wash through the paper at different rates.
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What if the formula to calculate the Rf value?
Rf value= distance moved by the centre of the spot ÷ distance moved by the solvent front
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Other cards in this set

Card 2

Front

What is a compound?

Back

Two or more types of atom which are CHEMICALLY BONDED.

Card 3

Front

What is a mixture?

Back

Preview of the front of card 3

Card 4

Front

What are the 4 main techniques for seperating mixtures?

Back

Preview of the front of card 4

Card 5

Front

What is distillation?

Back

Preview of the front of card 5
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GCSE2020

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Includes elements, compounds and mixtures as well as separating mixtures

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