giovy7204 giovy7204

06-02-2024
Chemistry

contestada

For a first-order reaction, the concentration of reactant is decreased to 12.5% of the initial concentration after 137 s. What is the reaction's half-life in seconds?
a) 68.5 s
b) 137 s
c) 45.6 s
d) 206.5 s

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