Question: 2. A first order reaction is 20% complete in 30 mins. How long does it take for the reaction to be 60% complete? A 51

2. A first order reaction is 20% complete in 30 mins. How long does it take for the reaction to be 60% complete? A 51 mins B. 69 mins C. 90 mins D. 123 mins E. 139 mins

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