787662
Descrição
Quiz por KatyWright, atualizado more than 1 year ago
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Criado por KatyWright
aproximadamente 10 anos atrás
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Questão 1
Questão
What colour does the halogen bromine go when burnt?
Responda
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Orange
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Green
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Blue
Questão 2
Questão
Complete the word equation.
Bromine + sodium iodide ->
Responda
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Bromine iodide + sodium
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Iodine Bromide + sodium
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Sodium bromide + iodine
Questão 3
Questão
Sodium reacts with chlorine.
What is the name of the compound made?
Responda
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Chlorine sodide
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Sodium chloride
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Sodium and chloride
Questão 4
Questão
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.
Responda
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CuCO3 -> CuO + CO2
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CuCO -> CO + CO2
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CuCO3 -> 2CO + 2CO2
Questão 5
Questão
Copper is a transition element.
Suggest the colour of copper carbonate when burnt.
Responda
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Purple
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Red
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Green
Questão 6
Questão
Car bodies can be made from steel or aluminium.
What are two advantages of using aluminium instead of steel?
Responda
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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
Questão 7
Questão
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.
Responda
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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
Questão 8
Questão
The chemical name for rust is hydrated iron(III) oxide.
Write down the word equation for the rusting of iron.
Responda
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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
Questão 9
Questão
What state is fluorine at room temperture?
Responda
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Solid
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Liquid
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Gas
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