Question: The rate of decrease of a reactant is proportional to the square of the amount present. During a particular reaction, 4 0 % of the

The rate of decrease of a reactant is proportional to the square of the amount present. During a particular reaction, 40% of the initial amount of this chemical remained after 10 sec . How long will it take before only 25% of the initial amount remains?
The rate of decrease of a reactant is

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