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Atom Economy (chemistry Only) (GCSE Chemistry)

The following is a GCSE Chemistry test covering 'Atom Economy (chemistry Only)' from the broader topic Quantitative Chemistry. The test is geared towards the AQA exam board style syllabus.
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Below a typical questions that will be covered in this test. You final score will be logged on your account

For the reaction CH4 + 2O2 ? CO2 + 2H2O, what is the atom economy for carbon dioxide as the desired product? (Use Ar: C = 12, O = 16, H = 1.)
A chemist reports an atom economy of 95% for producing a fine chemical. Which of the following is a realistic implication?
Which of the following is the most direct measurement related to atom economy?
Calculate the atom economy for the reaction N2 + 3H2 ? 2NH3.
Why is high atom economy important in green chemistry?
Which of the following is a correct statement linking atom economy and sustainability?
Which expression gives the atom economy (AE) of a reaction?
Which of these design choices will almost always increase atom economy?
For the reaction Na2CO3 + 2HCl ? 2NaCl + CO2 + H2O, calculate the atom economy for the desired product 2NaCl. (Use Ar: Na = 23, C = 12, O = 16, Cl = 35.5.)
Two industrial routes produce the same desired product. Route A has atom economy 90%, Route B has atom economy 45%. Assuming similar costs and environmental controls, which route is preferable on atom economy grounds and why?
Which of the following reactions has the best atom economy for producing water as the desired product?