A city's water supply is contaminated with a toxin at a concentration of 0.63 mg/L. Fortunately, this toxin decomposes to a safe mixture of products by first-order kinetics with a rate constant of 0.27 day1. How long will it take for half of the toxin to decompose? 2.3 days 2.6 days 0.27 days 0.17 days 0.38 days

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