61668
Description
Quiz by jamiemcparlin, updated more than 1 year ago
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Created by jamiemcparlin
over 11 years ago
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Question 1
Question
What is the equation to calculate atom economy?
Answer
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Total mass of reactants/ Total mass of products
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Actual yield/ theoretical yield x 100
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Mass of atoms in useful product/ Total mass of reactants x100
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Mass of atoms in producy / Total mass of waste x 100
Question 2
Question
What are the problems associated with developing renewable feedstocks from plants
Answer
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Plants aren't renewable.
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It uses up a lot of land that is needed for other things
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It damages the environment because habitat will be cleared to get the pants
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fertilizers are needed which use a lot of energy to make
Question 3
Question
What are the two types of chemicals made by the chemical industry?
Answer
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catalysts and feedstock
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waste and products
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Bulk chemicals and fine chemicals
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industrial chemicals and cosmetic chemicals
Question 4
Question
How does reducing the activation energy affect the reaction?
Answer
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Speeds up reaction
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increases yield
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Allows reaction to take place at a lower temperature
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Allows reaction to take place at a lower PH
Question 5
Question
What is needed for enzyme catalysts to work?
Answer
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optimum activation energy and concentration
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A high concentration of reactants
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A neutral sollution
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optimum temperature and PH
Question 6
Question
What is the first stage in chemical production?
Answer
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Synthesis
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preparing feedstock
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monitoring purity
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separation of products
Question 7
Question
Which of these is NOT a social benefit of Green Chemistry
Answer
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Cleaner water in rivers and lakes
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Cleaner air quality
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Cleaner buildings
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Reduced energy costs
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