Chemistry 2b Flashcards

Name a slow reaction.
Rusting of iron.
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Name a moderate speed reaction.
Magnesium reacting with acid to make bubbles.
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Name a fast reaction.
An explosion.
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What does the rate of reaction depend on?
Temperature, concentration/pressure, catalyst, surface area/size.
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What is a precipitate reaction?
When the products made cloud the solution.
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Sodium Thiosulphate and Hydrochloric acid produce what?
A cloudy precipitate.
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What is a good reaction for showing the effects of different catalysts.
decomposition of Hydrogen Peroxide.
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What is the equation for salt?
Acid + Metal ------ Salt + hydrogen.
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What does hydrochloric acid always produce?
Chloride salts.
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What does nitric acid produce when neutralised?
Nitrate.
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What are metal oxides and metal hydroxides?
Bses.
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What can ammonia be neutralised with to make fertiliser?
HN03
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What reaction do you do if you want to make an insoluble salt?
Precipitation.
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What is electrolysis?
Passing an electric current through an ionic substance thats molten or in solution, to break down the elements.
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What do electrolytes contain?
Dissolved/molten free ions.
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Positive ions gain and become...?
Reduction.
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Negative ions lose and become...?
Oxidation.
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What is always produced in electrolysis?
Hydrogen.
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Uses of chlorine?
Bleach and pastics.
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Uses of sodium hydroxide?
Chemical industry, eg soap.
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What is the name of aluminium ore?
Bauxite?
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What is left after bauxite is purified?
A white powder.
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What is cryolite used for?
Lowering temperature (and costs) of purifying aluminium.
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Other cards in this set

Card 2

Front

Name a moderate speed reaction.

Back

Magnesium reacting with acid to make bubbles.

Card 3

Front

Name a fast reaction.

Back

Preview of the front of card 3

Card 4

Front

What does the rate of reaction depend on?

Back

Preview of the front of card 4

Card 5

Front

What is a precipitate reaction?

Back

Preview of the front of card 5
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