787662
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Quiz von KatyWright, aktualisiert more than 1 year ago
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Erstellt von KatyWright
vor etwa 10 Jahre
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Frage 1
Frage
What colour does the halogen bromine go when burnt?
Antworten
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Orange
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Green
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Blue
Frage 2
Frage
Complete the word equation.
Bromine + sodium iodide ->
Antworten
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Bromine iodide + sodium
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Iodine Bromide + sodium
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Sodium bromide + iodine
Frage 3
Frage
Sodium reacts with chlorine.
What is the name of the compound made?
Antworten
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Chlorine sodide
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Sodium chloride
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Sodium and chloride
Frage 4
Frage
The word equation for the action of heat on copper carbonate, CuCO3, is
Copper carbonate -> copper oxide + carbon dioxide
Write a balanced symbol equation for this reaction.
Antworten
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CuCO3 -> CuO + CO2
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CuCO -> CO + CO2
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CuCO3 -> 2CO + 2CO2
Frage 5
Frage
Copper is a transition element.
Suggest the colour of copper carbonate when burnt.
Antworten
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Purple
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Red
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Green
Frage 6
Frage
Car bodies can be made from steel or aluminium.
What are two advantages of using aluminium instead of steel?
Antworten
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Aluminium is lighter than steel It has a natural layer that protects the surface from corrosion
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It is a nicer colour There is more of it
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There aren't any. Steel is better to make cars with than aluminium
Frage 7
Frage
Car seats can be made from leather.
Leather is attractive to look at.
Write down one other reason why leather is chosen to make car seats.
Antworten
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It is shiny.
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There aren't any more reasons for why leather is chosen to make car seats.
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They are easier to clean
Frage 8
Frage
The chemical name for rust is hydrated iron(III) oxide.
Write down the word equation for the rusting of iron.
Antworten
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Hydrated Iron(III) oxide <- Iron + water + oxygen
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Hydrated Iron(III) <- Iron + water
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Hydrated Iron(III) oxide <- Iron + water + Salt
Frage 9
Frage
What state is fluorine at room temperture?
Antworten
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Solid
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Liquid
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Gas
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