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