2333231
Beschreibung
Quiz von Rachel_ellen, aktualisiert more than 1 year ago
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Erstellt von Rachel_ellen
vor fast 10 Jahre
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Frage 1
Frage
What does the rate of reaction measure
Antworten
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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
Frage 2
Frage
What is the limiting reactant?
Antworten
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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
Frage 3
Frage
In a reaction at low temperatures the particles move fast
Antworten
- True
- False
Frage 4
Frage
In a reaction at high temperatures the particles move fast
Antworten
- True
- False
Frage 5
Frage
What happens if there is a low concentration
Antworten
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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
Frage 6
Frage
What is the relative atomic mass of carbon?
Antworten
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6
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12
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1
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18
Frage 7
Frage
How do you work out percentage yield?
Antworten
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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
Frage 8
Frage
What is atom economy?
Antworten
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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
Frage 9
Frage
Which reaction releases energy?
Antworten
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Exothermic
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Endothermic
Frage 10
Frage
Which reaction causes a temperature drop?
Antworten
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Exothermic
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Endothermic
Frage 11
Frage
What can be made from batch processes
Antworten
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Ammonia
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Medicines
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Sulfuric acid
Frage 12
Frage
Which one has a layered structure?
Antworten
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Diamond
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Buckminster fullerene
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Graphite
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