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11-03-2024
Chemistry

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A first-order reaction is 75.0% complete in 320 seconds. What are the first and second half-lives for this reaction?
a) First half-life: 106.7 s, Second half-life: 213.3 s
b) First half-life: 160 s, Second half-life: 320 s
c) First half-life: 213.3 s, Second half-life: 426.6 s
d) First half-life: 320 s, Second half-life: 640 s

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