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C7: Chemical Industry Quiz
Description
Chemistry (C7: The Chemical Industry) Quiz on C7: Chemical Industry Quiz, created by jamiemcparlin on 29/04/2013.
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c7: the chemical industry
chemistry
chemistry
c7: the chemical industry
Quiz by
jamiemcparlin
, updated more than 1 year ago
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Created by
jamiemcparlin
over 11 years ago
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Resource summary
Question 1
Question
What is the equation to calculate atom economy?
Answer
Total mass of reactants/ Total mass of products
Actual yield/ theoretical yield x 100
Mass of atoms in useful product/ Total mass of reactants x100
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
Plants aren't renewable.
It uses up a lot of land that is needed for other things
It damages the environment because habitat will be cleared to get the pants
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
catalysts and feedstock
waste and products
Bulk chemicals and fine chemicals
industrial chemicals and cosmetic chemicals
Question 4
Question
How does reducing the activation energy affect the reaction?
Answer
Speeds up reaction
increases yield
Allows reaction to take place at a lower temperature
Allows reaction to take place at a lower PH
Question 5
Question
What is needed for enzyme catalysts to work?
Answer
optimum activation energy and concentration
A high concentration of reactants
A neutral sollution
optimum temperature and PH
Question 6
Question
What is the first stage in chemical production?
Answer
Synthesis
preparing feedstock
monitoring purity
separation of products
Question 7
Question
Which of these is NOT a social benefit of Green Chemistry
Answer
Cleaner water in rivers and lakes
Cleaner air quality
Cleaner buildings
Reduced energy costs
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