States of Matter & Mixtures

What should you spray on a chromatogram if there is a colourless chemical present?
Locating Agent
1 of 19
What would happens to a solid when heated?
A solid would expand and vibrate
2 of 19
What happen to a gas when heated?
The particles move around faster
3 of 19
How is crude oil converted into its products?
Fractional Distillation
4 of 19
Whats the Rf value?
Distance travelled by solute / distance travelled by solvent
5 of 19
What is the stationary phase of paper chromatography?
The filter paper
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Why are marks made in paper chromatography made with a pencil?
So it's not affected by the solvent
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What does filtration do?
Separate an insoluble solid from a liquid
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What is a limiting factor with simple distillation?
If the two melting points are too similar
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What does chemically pure mean?
Only one compound or element is present
10 of 19
When a gas becomes a liquid what is it called?
Condensing
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How does sublimation occur?
When a solid is immediately heated to a temperature past its boiling point
12 of 19
Which state of matter his the highest force of attraction?
A solid
13 of 19
What are the 3 steps for water purification?
1) Filtration 2) Sedimentation 3) Chlorination
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How do you test the purity of a substance?
Heat it and plot the temperature as it cools down on a graph
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Which state of matter has the most energy?
A gas
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What does crystallisation do?
Separate a soluble solid from a liquid
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How can fresh water be produced from seawater?
Distillation
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Why must water used in chemical analysis not contain dissolved salts?
It might react differently due to the impurity
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Other cards in this set

Card 2

Front

What would happens to a solid when heated?

Back

A solid would expand and vibrate

Card 3

Front

What happen to a gas when heated?

Back

Preview of the front of card 3

Card 4

Front

How is crude oil converted into its products?

Back

Preview of the front of card 4

Card 5

Front

Whats the Rf value?

Back

Preview of the front of card 5
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