2333231
Descrição
Quiz por Rachel_ellen, atualizado more than 1 year ago
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Criado por Rachel_ellen
aproximadamente 9 anos atrás
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Questão 1
Questão
What does the rate of reaction measure
Responda
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time it takes to make oxygen
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amount of product made in a specific time
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the product produced from a chemical reaction
Questão 2
Questão
What is the limiting reactant?
Responda
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the only reactor
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the one that is all used up at the start
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the one that is used by the end of the reation
Questão 3
Questão
In a reaction at low temperatures the particles move fast
Responda
- True
- False
Questão 4
Questão
In a reaction at high temperatures the particles move fast
Responda
- True
- False
Questão 5
Questão
What happens if there is a low concentration
Responda
-
the particles collide more
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the particles will be more spread out
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the rate of reaction will be faster
Questão 6
Questão
What is the relative atomic mass of carbon?
Responda
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6
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12
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1
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18
Questão 7
Questão
How do you work out percentage yield?
Responda
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actual yield - predicted yield
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predicted yield x actual yield
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actual yield / predicted yield x100
Questão 8
Questão
What is atom economy?
Responda
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a way of comparing the amount of product made to the amount produced
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an industrial process
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a way of measuring the number of atoms that are wasted in a chemical reaction
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the rate a reaction happens
Questão 9
Questão
Which reaction releases energy?
Responda
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Exothermic
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Endothermic
Questão 10
Questão
Which reaction causes a temperature drop?
Responda
-
Exothermic
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Endothermic
Questão 11
Questão
What can be made from batch processes
Responda
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Ammonia
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Medicines
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Sulfuric acid
Questão 12
Questão
Which one has a layered structure?
Responda
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Diamond
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Buckminster fullerene
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Graphite
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